OCR GCSE 9-1 Twenty First Century Science Suite B GCSE ChemistryGCSE 9-1 QUIZ on Chapter C3 "Chemicals of the natural environment" (Foundation Tier)

Which word corresponds to a hydrocarbon molecule? [op-13]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to carbon? [op-14]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to a narrow boiling range of hydrocarbons from oil? [op-15]
1. compound
2. element
3. fraction
4. condensate
Which word corresponds to crude oil? [op-16]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to methane gas? [op-17]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to hydrogen? [op-18]
1. compound
2. element
3. fraction
4. mixture
Which word corresponds to a range of similar sized hydrocarbons from oil? [op-19]
1. compound
2. element
3. fraction
4. crackate
Which word corresponds to a fraction of crude oil? [op-20]
1. compound
2. element
3. evaporate
4. mixture
Which word means changing a gas into liquid? [op-21]
1. condensing
2. cracking
3. distilling
4. evaporating
Which word means breaking up big molecules into small ones? [op-22]
1. condensing
2. cracking
3. distilling
4. evaporating
Which of the following involves liquid to gas AND gas to liquid without chemical change? [op-23]
1. condensing
2. cracking
3. distilling
4. evaporating
Which word means what happens to spilt petrol? [op-24]
1. condensing
2. cracking
3. distilling
4. evaporating
Which of the following is TRUE about crude oil? [op-45]
1. formed from the decayed remains of plants and animals
2. its a renewable energy resource
3. its an infinite energy resource
4. its a compound
Which of the following is TRUE about crude oil? [op-46]
1. formed from the erosion of sedimentary rock
2. its a non-renewable energy resource
3. its an infinite energy resource
4. its a compound
Which of the following is TRUE about crude oil? [op-47]
1. formed from the erosion of sedimentary rock
2. its a renewable energy resource
3. its a finite energy resource
4. its a compound
Which of the following is TRUE about crude oil? [op-48]
1. formed from the erosion of sedimentary rock
2. its a renewable energy resource
3. its an infinite energy resource
4. its a mixture of hydrocarbons
Which of the following is TRUE about crude oil? [op-49]
1. the mixture can separated by distillation
2. its a non-fossil fuel
3. the molecules are all the same size
4. the components have the same boiling point
Which of the following is TRUE about crude oil? [op-50]
1. the mixture can't be separated by distillation
2. its a fossil fuel
3. the molecules are all the same size
4. the components have the same boiling point
Which of the following is TRUE about crude oil? [op-51]
1. the mixture can't be separated by distillation
2. its a non-fossil fuel
3. the molecules are of different size
4. the components have the same boiling point
Which of the following is TRUE about crude oil? [op-52]
1. the mixture can't be separated by distillation
2. its a non-fossil fuel
3. the molecules are the same size
4. the components have the different boiling points
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-53]
1. the boiling point gets higher
2. it gets more volatile (more easily vaporised)
3. it gets less viscous (less sticky)
4. it gets more easy to ignite (gets more flammable)
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-54]
1. the boiling point gets lower
2. it gets less volatile (less easily vaporised)
3. it gets less viscous (less sticky)
4. it gets more easy to ignite (gets more flammable)
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-55]
1. the boiling point gets lower
2. it gets more volatile (more easily vaporised)
3. it gets more viscous (more sticky)
4. it gets more easy to ignite (gets more flammable)
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-56]
1. the boiling point gets lower
2. it gets more volatile (more easily vaporised)
3. it gets less viscous (less sticky)
4. it gets less easy to ignite (gets less flammable)
Cracking is an example of? [op-57]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
Making plastics is an example of? [op-58]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
The separation of crude oil products is an example of? [op-59]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
Burning a fuel is an example of? [op-60]
1. thermal decomposition
2. polymerisation
3. fractional distillation
4. combustion
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-61]
1. it needs a high temperature
2. it doesn't need a catalyst
3. it makes small molecules into more useful bigger molecules
4. it can make plastics
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-62]
1. it needs a low temperature
2. it needs a catalyst
3. it makes small molecules into more useful bigger molecules
4. it can make plastics
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-63]
1. it needs a low temperature
2. it doesn't need a catalyst
3. it makes big molecules into more useful smaller molecules like petrol
4. it can make plastics
Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-64]
1. it needs a low temperature
2. it doesn't need a catalyst
3. it makes small molecules into more useful bigger molecules like petrol
4. it can make small molecules to convert into plastics
Which corresponds to a process that has been occuring over a very long period of geological time? [op-65]
1. process J
2. process N
3. process K
4. process M
Which corresponds to a process of combustion? [op-66]
1. process J
2. process N
3. process K
4. process M
Which corresponds to a process of fractional distillation? [op-67]
1. process J
2. process N
3. process K
4. process M
Which corresponds to a process of polymerisation? [op-68]
1. process L
2. process N
3. process K
4. process M
Which corresponds to a process of cracking? [op-69]
1. process L
2. process Q
3. process K
4. process M
Which corresponds to a very slow process, sometimes described as 'non-biodegradable'? [op-70]
1. process L
2. process Q
3. process N
4. process M
Which corresponds to the cause of the 'greenhouse effect'? [op-71]
1. process L
2. process Q
3. process N
4. process M
Which corresponds to changing bigger molecules into smaller molecules with heat and a catalyst? [op-72]
1. process K
2. process Q
3. process N
4. process L
Which corresponds to changing small molecules into big molecules? [op-73]
1. process M
2. process Q
3. process N
4. process K
Which corresponds to a process that works because different hydrocarbons in oil having different boiling points? [op-74]
1. process L
2. process K
3. process N
4. process M
Which corresponds to a process that causes acid rain? [op-75]
1. process Q
2. process K
3. process N
4. process M
Which corresponds to the process that makes extra petrol that wasn't originally in the crude oil? [op-76]
1. process M
2. process K
3. process N
4. process L
Which is a chemical test for the gas hydrogen? [op-77]
1. pops with lit splint
2. turns limewater cloudy
3. relights a glowing splint
4. bleaches damp litmus paper
Which is a chemical test for the gas carbon dioxide? [op-78]
1. pops with a lit splint
2. turns limewater cloudy
3. relights a glowing splint
4. bleaches damp litmus paper
Which is a chemical test for water? [op-79]
1. turns orange potassium dichromate paper green
2. turns universal indicator orange
3. turns blue cobalt chloride paper pink
4. turns litmus paper green
Which is a chemical test for water? [op-80]
1. turns orange potassium dichromate paper green
2. turns universal indicator turquoise
3. turns litmus paper green
4. turns white copper sulfate blue
Which of the following, when fossil fuels are burned, causes acid rain? [op-81]
1. sulfur dioxide
2. carbon dioxide
3. carbon (soot)
4. carbon monoxide
Which of the following, when fossil fuels are burned causes the 'greenhouse effect'? [op-82]
1. sulfur dioxide
2. carbon dioxide
3. carbon (soot)
4. carbon monoxide
Which of the following, when fossil fuels are burned, is formed when there is lack of oxygen? [op-83]
1. sulfur dioxide
2. carbon dioxide
3. carbon (soot)
4. nitrogen dioxide
Which of the following, when fossil fuels are burned, is formed when there is lack of oxygen? [op-84]
1. sulfur dioxide
2. carbon dioxide
3. nitrogen dioxide
4. carbon monoxide
At 1 the crude oil is a ..?.. of hydrocarbons. [op-85]
1. mixture
2. volatiles
3. compounds
4. viscous
At 2 the hydrocarbons are? [op-86]
1. big molecules
2. volatile
3. not very flammable
4. viscous
At 1-4 the hydrocarbons are a ..?.. of hydrogen and carbon. [op-87]
1. atom
2. mixture
3. compound
4. fraction
At 4 the hydrocarbons are very? [op-88]
1. volatile
2. runny
3. flammable
4. viscous
At 1 the hydrocarbon mixture is? [op-89]
1. dark in colour
2. very flammable
3. like diesel
4. very runny
At 2 the hydrocarbon mixture is? [op-90]
1. dark in colour
2. very flammable
3. like diesel
4. viscous
At 3 the hydrocarbon mixture is? [op-91]
1. very dark in colour
2. very flammable
3. like diesel
4. very viscous
At 4 the hydrocarbon mixture is? [op-92]
1. very light in colour
2. very flammable
3. like diesel
4. not very flammable
... Substance X is a hydrocarbon with a low boiling point.
... Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-93]
1. X has smallermolecules than Y
2. X is less flammable than Y
3. X is less volatile than Y
4. X has more carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-94]
1. X has larger molecules than Y
2. X is more flammable than Y
3. X is less volatile than Y
4. X has more carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-95]
1. X has larger molecules than Y
2. X is less flammable than Y
3. X is more volatile than Y
4. X has more carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-96]
1. X has larger molecules than Y
2. X is less flammable than Y
3. X is less volatile than Y
4. X has fewer carbon atoms than Y
Substance X is a hydrocarbon with a low boiling point.
Substance Y is a hydrocarbon with a high boiling point.
Which statement is TRUE about the hydrocarbons X and Y? [op-97]
1. X is less viscous than Y
2. X is less flammable than Y
3. X is less volatile than Y
4. X has more carbon atoms than Y
The main waste products of the combustion of a hydrocarbon fuel are? [op-98]
1. carbon and water
2. carbon dioxide and water
3. carbon dioxide and hydrogen
4. carbon monoxide and water
The 'clean' or complete combustion of methane (natural gas) produces? [op-99]
1. carbon dioxide and hydrogen
2. carbon and water
3. carbon dioxide and water
4. carbon monoxide and water
The combustion of hydrogen produces? [op-100]
1. carbon dioxide only
2. carbon and water
3. carbon dioxide and water
4. only water
Which is a suitable physical test for a liquid thought to be pure water by seeing if it? [op-119]
1. boils at a particular temperature
2. mixes with oil
3. dissolves salt
4. freezes
Which is a definition of an atom? [op-120]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which is a definition of a mixture? [op-121]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which is a definition of a molecule? [op-122]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which is a definition of a compound? [op-123]
1. the smallest particles of matter that make up substances
2. collection of substances which keep their own properties and easily separated
3. two or more atoms joined together to make a bigger particle
4. two or more elements chemically joined together and not easily separated
Which of the following means a 'hydrocarbon'? [op-124]
1. a mixture of carbon and hydrogen atoms
2. a molecule made of carbon and hydrogen atoms chemically combined
3. a mixture of carbon and hydrogen molecules
4. a molecule made from reacting carbon and water
Which statement is TRUE about polymers (plastics)? [op-125]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is used for plastic bags
4. poly(propene) is not strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-126]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bags
4. poly(propene) is strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-127]
1. poly(ethene) is not readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bags and bottles
4. poly(propene) is not strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-128]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is easily shaped when softened by heat
3. poly(ethene) is too expensive to use for bottles
4. poly(propene) is too weak to make into ropes
Which statement is TRUE about polymers (plastics)? [op-129]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is cheap to use for plastic bottles
4. poly(propene) is too weak to make into ropes
Which statement is TRUE about polymers (plastics)? [op-130]
1. poly(ethene) is readily broken down by microorganisms
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bottles
4. poly(propene) is strong enough to make into crates
Which statement is TRUE about polymers (plastics)? [op-131]
1. poly(propene) is not biodegradable
2. poly(propene) is not easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bottles
4. poly(propene) is not strong enough to make into crates
Which statement is TRUE about polymers (plastics)? [op-132]
1. poly(propene) is biodegradable
2. poly(ethene) is easily shaped when softened by heat
3. poly(ethene) is too expensive to use for plastic bottles
4. poly(propene) is not strong enough to make into crates
Which explains why the gasoline fraction is used for petrol? [op-133]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which explains why the refinery gas fraction is used for 'camping gaz' burners? [op-134]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which explains why the fuel oil fraction is used for central heating? [op-135]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which explains why the lubricating oil fraction is used as a lubricant? [op-136]
1. not too flammable and not too viscous
2. quite viscous but will not freeze or evaporate easily
3. a liquid that is easily vapourised and not too viscous
4. can be liquified under pressure but easily changes back to a gas
Which represents an addition polymerisation reaction? [op-137]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which represents a combustion reaction? [op-138]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which represents a cracking reaction? [op-139]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which represents a reaction that tests for ethene? [op-140]
1. ethene ==> poly(ethene)
2. ethene + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Below is a list of processes involved in the petrochemical industry.
1. combustion , 2. cracking , 3. drilling , 4. fractional distillation , 5. polymerisation
Which is the correct order to produce a plastic? [op-141]
1. 3 2 4 5
2. 2 5 1 4
3. 3 4 2 5
4. 4 2 3 5
Carbon monoxide has the formula CO. It is therefore? [op-142]
1. an atom
2. an element
3. a mixture
4. a compound
Which is a single compound? [op-143]
1. methane
2. carbon
3. lubricating oil
4. hydrogen
Which is a solid element? [op-144]
1. methane
2. carbon
3. bitumen tar
4. wax
Which is a mixture? [op-145]
1. methane
2. carbon
3. product(s) of burning methane
4. hydrogen
Which is a particularly toxic gas sometimes produced by faulty gas fires? [op-146]
1. methane
2. carbon dioxide
3. nitrogen
4. carbon monoxide
Which represents a thermal decomposition reaction? [op-147]
1. ethene ==> poly(ethene)
2. methane + oxygen ==> carbon dioxide + water
3. hexane ==> butane + ethene
4. ethene + bromine ==> dibromoethane
Which is a thermal decompostion reaction in the petrochemical industry? [op-148]
1. combustion
2. addition polymerisation
3. fractional distillation
4. cracking
What is formed by the complete combustion of wax? [op-161]
1. water + carbon dioxide
2. water only
3. carbon dioxide only
4. carbon monoxide and water
What may be formed by the incomplete combustion of petrol? [op-162]
1. water + carbon dioxide
2. water, carbon dioxide and carbon monoxide
3. only carbon dioxide
4. only water
Drips of a colourless liquid were seen at the end of a car exhaust. The colourless liquid is most likely to be? [op-163]
1. unburned petrol
2. engine oil
3. water
4. partly burned petrol
A samle of gas from a car exhaust was tested with limewater and gave a white precipitate. The gas was most likely to be? [op-164]
1. carbon monoxide
2. unburned petrol vapour
3. partly burned petrol vapour
4. carbon dioxide
Poly(ethene) and poly(propene) are described as examples of? [op-165]
1. plastics
2. fuels
3. hydrocarbons
4. crackates
Petrol and diesel are best described as examples of? [op-165]
1. plastics
2. fuels
3. lubricants
4. crackates
Incomplete combustion can happen when there is a shortage of? [op-167]
1. carbon dioxide
2. fuel
3. oxygen
4. carbon monoxide
Biodegradable plastics are environmentally friendly because they? [op-168]
1. are structurally weak
2. don't produce harmful fumes when burned
3. are not attacked by fungus
4. rot away in a land fill site
Which is a hydrocarbon molecule? [op-169]
1. C₂H₆
2. C₂H₅Br
3. C₂H₅OH
4. CH₃COOH
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be gasoline? [op-170]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be kerosine? [op-171]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be bitumen? [op-172]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be bottled gas? [op-173]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel egine fuel. Which best matches petrol fuel? [op-174]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel egine fuel. Which best matches diesel fuel? [op-175]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel egine fuel. Which best matches road surfacing material? [op-176]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The 'carbon numbers' correspond to molecules with different uses: for road surfacing, petrol engine fuel, camping gas and diesel egine fuel. Which best matches camping gas? [op-177]
1. 3 carbon atoms
2. 8 carbon atoms
3. 20 carbon atoms
4. over 40 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a light flammable liquid? [op-178]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a not very flammable liquid? [op-179]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a thick viscous liquid? [op-180]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
$fractionQ.jpg$ The following 'carbon numbers' correspond to hydrocarbon molecules with different characteristics. These are: a not very flammable oily liquid, a light flammable liquid, a thick viscous (sticky) liquid, and a flammable gas. Which corresponds to a flammable gas? [op-181]
1. 3 carbon atoms
2. 8 carbon atoms
3. 15 carbon atoms
4. 30 carbon atoms
Which is a plastic? [op-182]
1. petrol
2. polythene
3. paraffin
4. propanol
Which is a plastic? [op-183]
1. petrol
2. paraffin
3. polypropene
4. propanol
Which is a plastic? [op-184]
1. PDB
2. ASE
3. DDT
4. PVC
[op-1] Which four quantities a, b, c and d are required to balance the equation?
a CH_4(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 2 1 2
2. 1 1 1 2
3. 1 2 2 1
4. 1 1 1 1
[op-2] Which four quantities a, b, c and d are required to balance the equation?
a C₂H_6(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 2 1 3
2. 2 7 4 6
3. 2 4 4 6
4. 1 7 2 3
[op-3] Which four quantities a, b, c and d are required to balance the equation?
a C₃H_8(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 3 3 4
2. 2 10 4 6
3. 1 5 3 4
4. 2 5 2 3
[op-4] Which four quantities a, b, c and d are required to balance the equation?
a C₄H_10(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 13 8 4
2. 2 7 4 10
3. 1 5 3 4
4. 2 13 8 10
[op-5] Which four quantities a, b, c and d are required to balance the equation?
a C₅H_12(l) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 8 5 6
2. 1 4 4 6
3. 2 4 5 12
4. 2 8 10 12
[op-6] Which four quantities a, b, c and d are required to balance the equation?
a C₆H_14(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 2 9 6 14
2. 2 19 12 14
3. 1 9 6 7
4. 1 10 12 7
[op-7] Which four quantities a, b, c and d are required to balance the equation?
a C₇H_16(l) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 5 7 8
2. 2 12 14 16
3. 1 11 7 8
4. 2 11 14 16
[op-8] Which four quantities a, b, c and d are required to balance the equation?
a C₈H_18(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 13 8 18
2. 1 13 8 9
3. 2 13 16 18
4. 2 25 16 18
[op-9] Which four quantities a, b, c and d are required to balance the equation?
a C₂H_4(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 1 3 2 2
2. 1 2 2 2
3. 2 3 4 4
4. 2 6 4 4
[op-10] Which four quantities a, b, c and d are required to balance the equation?
a C₃H_6(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 2 5 6 6
2. 2 9 6 6
3. 1 5 3 3
4. 1 9 3 3
[op-11] Which four quantities a, b, c and d are required to balance the equation?
a C₄H_8(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 2 12 8 8
2. 2 6 8 8
3. 1 6 4 4
4. 1 3 4 4
[op-12] Which four quantities a, b, c and d are required to balance the equation?
a C₇H_8(g) + b O_2(g) ==> c CO_2(g) + d H₂O_(l)
1. 2 9 4 8
2. 2 10 14 8
3. 1 5 7 4
4. 1 9 7 4
Which molecule is natural gas? [op-25]
Which molecule is methane? [op-26]
Which molecule has the lowest boiling point? [op-27]
Which molecule reacts readily reacts and decolourises bromine water at room temperature? [op-28]
Which molecule is unsaturated? [op-29]
Which molecule can be polymerised to a plastic material? [op-30]
Which molecule is an alkene? [op-31]
Which molecule has the highest boiling point? [op-32]
Which molecule readily reacts to decolourise bromine water? [op-33]
4. <img src="../page12/gifs/extra2.gif"
Which molecule is unsaturated? [op-34]
Which molecule can be polymerised to form a plastic material? [op-35]
Which molecule is an alkene? [op-36]
Which of the molecules is saturated? [op-37]
Which of the molecules is an alkane? [op-38]
Which of the molecules is saturated? [op-39]
Which of the molecules is saturated? [op-40]
Which molecule has the lowest boiling point? [op-41]
Which molecule is most likely to be a liquid? [op-42]
Which molecule is likely to be the most chemically reactive? [op-43]
Which molecule has the highest boiling point? [op-44]
Which is TRUE about an alkane hydrocarbon molecule? [op-101]
1. it is saturated
2. it has single and double covalent bonds
3. it readily reacts with bromine
4. it can be polymerised to a plastic polymer
Which is TRUE about an alkane hydrocarbon molecule? [op-102]
1. it is unsaturated
2. it has single covalent bonds only
3. it readily reacts with bromine
4. it can be polymerised to a plastic polymer
Which is TRUE about an alkane hydrocarbon molecule? [op-103]
1. it is unsaturated
2. it has single and double covalent bonds
3. it does not readily react with bromine
4. it can be polymerised to a plastic polymer
Which is TRUE about an alkane hydrocarbon molecule? [op-104]
1. it is unsaturated
2. it has single and double covalent bonds
3. it readily reacts with bromine
4. it cannot be polymerised to a plastic polymer
Which is TRUE about an alkene hydrocarbon molecule? [op-105]
1. it is unsaturated
2. it has single covalent bonds only
3. it does not readily react with bromine
4. it cannot be polymerised to a plastic polymer
Which is TRUE about an alkene hydrocarbon molecule? [op-106]
1. it is saturated
2. it has single and double covalent bonds
3. it does not readily react with bromine
4. it cannot be polymerised to a plastic polymer
Which is TRUE about an alkene hydrocarbon molecule? [op-107]
1. it is saturated
2. it has single covalent bonds only
3. it readily reacts with bromine
4. it cannot be polymerised to a plastic polymer
Which is TRUE about an alkene hydrocarbon molecule? [op-108]
1. it is saturated
2. it has single covalent bonds only
3. it does not readily react with bromine
4. it can be polymerised to a plastic polymer
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which is unsaturated? [op-109]
1. molecule 2
2. molecule 1
3. molecule 3
4. molecule 6
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which is an alkene? [op-110]
1. molecule 1
2. molecule 2
3. molecule 3
4. molecule 6
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which are alkanes? [op-111]
1. molecules 2 and 4
2. molecule 2 only
3. molecules 1 and 3
4. molecule 1 only
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which are alkenes? [op-112]
1. molecules 1 and 3
2. molecule 2 only
3. molecule 1 only
4. molecules 2 and 4
What polymer is formed from this molecule? [op-113]
1. poly(ethene)
2. poly(propene)
3. poly(styrene)
4. poly(vinyl chloride)
What polymer is formed from this molecule? [op-114]
1. poly(ethene)
2. poly(propene)
3. poly(styrene)
4. poly(vinyl chloride)
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C₂H₆? [op-115]
1. molecule 5
2. molecule 6
3. molecule 3
4. molecule 4
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C₃H₆? [op-116]
1. molecule 5
2. molecule 6
3. molecule 3
4. molecule 4
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C₃H₈? [op-117]
1. molecule 5
2. molecule 6
3. molecule 3
4. molecule 4
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C₄H₁₀? [op-118]
1. molecule 5
2. molecule 6
3. molecule 3
4. molecule 4
A student made some sketches of possible addition polymer structures. Which one of the following could be a correct structure? [op-149]
1. structure (2)
2. structure (4)
3. structure (3)
4. structure (5)
A student made some sketches of possible addition polymer structures. Which one of the following could be a correct structure? [op-150]
1. structure (4)
2. structure (6)
3. structure (3)
4. structure (5)
A test for alkenes is to shake it with bromine water and look for decolourisation of the orange colour of bromine. If ethene was tested in this way, which student correctly predicted the structure of the product? [op-151]
1. Joe
2. Tanya
3. Fred
4. Suzy
The bonding between atoms in a hydrocarbon molecule is? [op-152]
1. ionic only
2. intermolecular only
3. ionic and covalent
4. covalent only
'Cracking' or thermal decompostion is used in the oil industry to convert higher fractions of hydrocarbons into more useful molecules. For example, lower alkanes for petrol or alkenes for making plastics. Given the following cracking equation, what is the missing molecule? [op-153]
C₉H₂₀ ==> C₇H₁₆ + ????
1. C₂H₄
2. C₂H₆
3. C₃H₆
4. C₃H₈
'Cracking' or thermal decompostion is used in the oil industry to convert higher fractions of hydrocarbons into more useful molecules. For example, lower alkanes for petrol or alkenes for making plastics. Given the following cracking equation, what is the missing molecule? [op-154]
C₁₀H₂₂ ==> C₆H₁₂ + ????
1. C₄H₈
2. C₄H₁₀
3. 2C₂H₄
4. C₄H₁₂
'Cracking' or thermal decompostion is used in the oil industry to convert higher fractions of hydrocarbons into more useful molecules. For example, lower alkanes for petrol or alkenes for making plastics. Given the following cracking equation, what is the missing molecule? [op-155]
C₁₀H₂₂ ==> CH₄ + C₆H₁₂ + ????
1. C₂H₄
2. C₂H₆
3. C₃H₆
4. C₃H₈
'Cracking' or thermal decompostion is used in the oil industry to convert higher fractions of hydrocarbons into more useful molecules. For example, lower alkanes for petrol or alkenes for making plastics. Given the following cracking equation, what is the missing molecule? [op-156]
C₁₂H₂₆ ==> C₂H₄ + C₇H₁₄ + ????
1. C₂H₄
2. C₄H₈
3. C₃H₆
4. C₃H₈
Which is a suitable chemical test for an alkene, to distinguish it from an alkane? [op-157]
1. an alkene decolourises orange bromine water
2. an alkene burns with a more smokey flame
3. an alkane reacts with bromine water when bright light is shone on the mixture
4. the alkane with the same number of carbon atoms has a slightly higher boiling point
Which of the following explains why alkenes are more reactive than alkanes? [op-158]
1. alkenes have a smaller molecular mass than the corresponding alkane with the same number of carbon atoms
2. alkenes have a reactive C=C double bond
3. alkenes have a lower boiling point than the corresponding alkane with the same number of carbon atoms
4. the C=C double bond in alkenes is weaker than the C-C single bond
'Cracking' or thermal decompostion is used in the oil industry to convert higher fractions of hydrocarbons into more useful molecules. For example, lower alkanes for petrol or alkenes for making plastics. Given the following cracking equation, what is the missing molecule? [op-159]
C₁₆H₃₄ ==> C₂H₄ + C₇H₁₆ + H₂ + ????
1. C₆H₁₂
2. C₆H₁₄
3. C₇H₁₂
4. C₇H₁₄
'Cracking' or thermal decompostion is used in the oil industry to convert higher fractions of hydrocarbons into more useful molecules. For example, lower alkanes for petrol or alkenes for making plastics. Given the following cracking equation, what is the missing molecule? [op-160]
C₁₈H₃₈ ==> C₃H₈ + C₇H₁₄ + H₂ + ????
1. C₇H₁₆
2. C₇H₁₄
3. C₈H₁₆
4. C₈H₁₄
Which of the following statements is TRUE? [op-185]
1. the monomer to make polythene is ethene
2. unsaturated hydrocarbons are generally unreactive
3. unsaturated hydrocarbons have no carbon-carbon double bond
4. a hydrocarbon of formula C₃H₈ will decolourise bromine water
Which of the following statements is TRUE? [op-186]
1. the monomer to make polythene is ethane
2. unsaturated hydrocarbons are generally reactive
3. unsaturated hydrocarbons have no carbon-carbon double bond
4. a hydrocarbon of formula C₃H₈ will decolourise bromine water
Which of the following statements is TRUE? [op-187]
1. the monomer to make polythene is ethane
2. unsaturated hydrocarbons are generally unreactive
3. unsaturated hydrocarbons have a carbon-carbon double bond
4. a hydrocarbon of formula C₄H₁₀ will decolourise bromine water
Which of the following statements is TRUE? [op-188]
1. the monomer to make polypropene is propane
2. unsaturated hydrocarbons are generally unreactive
3. unsaturated hydrocarbons have no carbon-carbon double bond
4. a hydrocarbon of formula C₄H₈ will decolourise bromine water
Which of the following statements is TRUE? [op-189]
1. the monomer to make polypropene is propene
2. unsaturated hydrocarbons are generally unreactive
3. unsaturated hydrocarbons have no carbon-carbon double bond
4. a hydrocarbon of formula C₄H₁₀ will decolourise bromine water
Which of the following statements is TRUE? [op-190]
1. the monomer to make polypropene is propane
2. the products of cracking a long chain hydrocarbon are more volatile
3. unsaturated hydrocarbons have no carbon-carbon double bond
4. a hydrocarbon of formula C₄H₁₀ will decolourise bromine water
Which of the following statements is TRUE? [op-191]
1. a hydrocarbon of formula C₄H₁₀ will decolourise bromine water
2. the monomer to make polypropene is propane
3. the products of cracking a long chain hydrocarbon are more flammable
4. addition polymers are made by combining alkane monomers
Which of the following statements is TRUE? [op-192]
1. a hydrocarbon of formula C₄H₁₀ will decolourise bromine water
2. the monomer to make polypropene is propane
3. the products of cracking a long chain hydrocarbon are more viscous
4. addition polymers are made by combining alkene monomers
Which of these will decolourise bromine water? [op-193]
1. ethene
2. poly(ethene)
3. propane
4. butane
Which of these will decolourise bromine water? [op-194]
1. ethane
2. propene
3. propane
4. poly(ethene)
The general formula for alkanes is C_nH_{2n + 2}, where n is an integer (1, 2, 3 etc.). Which is the correct general formula for an alkene? [op-195]
1. C_nH_{2n + 1}
2. C_nH_n
3. C_nH_2n
4. C_nH_{2n - 2}
The general formula for alkenes is C_nH_2n, where n is an integer (1, 2, 3 etc.). Which is the correct general formula for an alkane? [op-196]
1. C_nH_{2n + 1}
2. C_nH_n
3. C_nH_{2n - 2}
4. C_nH_{2n + 2}
Which of these statements is TRUE about crude oil and fractional distillation? [op-197]
1. crude oil consists of short and long chain hydrocarbons
2. short chain hydrocarbons condense at the bottom of the column
3. crude oil fractions are burned to crack them
4. hydrocarbons at the bottom of the column have a low viscosity
Which of these statements is TRUE about crude oil and fractional distillation? [op-198]
1. crude oil consists of long chain hydrocarbons
2. short chain hydrocarbons condense at the top of the column
3. crude oil fractions are burned to crack them
4. hydrocarbons at the bottom of the column have a low viscosity
Which of these statements is TRUE about crude oil and fractional distillation? [op-199]
1. crude oil consists of long chain hydrocarbons
2. long chain hydrocarbons condense at the top of the column
3. crude oil fractions are heated with a catalyst to crack them
4. hydrocarbons at the bottom of the column have a low viscosity
Which of these statements is TRUE about crude oil and fractional distillation? [op-200]
1. crude oil consists of long chain hydrocarbons
2. long chain hydrocarbons condense at the top of the column
3. crude oil fractions are burned to crack them
4. hydrocarbons at the bottom of the column have a high viscosity
Which of these statements is TRUE about crude oil and fractional distillation? [op-201]
1. hydrocarbons at the top of the column are flammable
2. long chain hydrocarbons condense at the top of the column
3. crude oil fractions are burned to crack them
4. hydrocarbons at the bottom of the column have a low viscosity
Which of these statements is TRUE about crude oil and fractional distillation? [op-202]
1. hydrocarbons at the bottom of the column are flammable
2. surplus long chain fractions can be cracked to make more petrol
3. very short chain fractions are cracked to make alkenes for plastics
4. hydrocarbons towards the bottom of the column have no use at all
Which of these statements is TRUE about crude oil and fractional distillation? [op-203]
1. hydrocarbons at the bottom of the column are flammable
2. very short chain fractions can be cracked to make more petrol
3. surplus long chain fractions are cracked to make alkenes for plastics
4. hydrocarbons towards the bottom of the column have no use at all
Which of these statements is TRUE about crude oil and fractional distillation? [op-204]
1. hydrocarbons at the bottom of the column are flammable
2. very short chain fractions can be cracked to make more petrol
3. long chain fractions cannot be cracked to make alkenes for plastics
4. hydrocarbons towards the bottom of the column have some limited uses
The diagram shows the formation of a polymer. Which is TRUE? [op-205]
1. in the monomer molecule the bonds shown between the carbon atoms are double covalent bonds
2. the monomer is reactive because it has easily broken single bond
3. the diagram shows a condensation polymerisation
4. when W, X, Y and Z are hydrogen the monomer is ethane and the polymer is poly(ethane)
The diagram shows the formation of a polymer. Which is TRUE? [op-206]
1. in the monomer molecule the bonds shown between the carbon atoms are triple covalent bonds
2. the monomer is reactive because it has an easily broken double bond
3. the diagram shows a condensation polymerisation
4. when W, X, Y and Z are hydrogen the monomer is ethane and the polymer is poly(ethane)
The diagram shows the formation of a polymer. Which is TRUE? [op-207]
1. in the monomer molecule the bonds shown between the atoms are all single covalent bonds
2. the monomer is reactive because it has an easily broken single bond
3. the diagram shows an addition polymerisation
4. when W, X, Y and Z are hydrogen the monomer is ethane and the polymer is poly(ethane)
The diagram shows the formation of a polymer. Which is TRUE? [op-208]
1. in the monomer molecule the bonds shown between the atoms are all single covalent bonds
2. the monomer is reactive because it has an easily broken single bond
3. the diagram shows a condensation polymerisation
4. when W, X, Y and Z are hydrogen the monomer is ethene and the polymer is poly(ethene)
Given the equation of the reduction of an iron oxide in a blast furnace:
? + 4CO ==> 3Fe + 4CO₂
What must the formula of the original iron oxide ore? [me-25]
1. Fe₃O₂
2. Fe₄O₃
3. Fe₃O₄
4. Fe₂O₃
It is possible for an iron oxide ore in a blast furnace to be directly reduced by the coke (carbon) to form iron.
a Fe₂O₃ + b C ==> c Fe + d CO₂
Which four quantities a, b, c and d give the ratio to balance the equation? [me-26]
1. 1, 3, 6, 3
2. 1, 2, 3, 6
3. 2, 2, 6, 4
4. 2, 3, 4, 3
It is possible for an iron oxide ore in a blast furnace to be directly reduced by the coke (carbon) to form iron.
a Fe₃O₄ + b C ==> c Fe + d CO₂
Which four quantities a, b, c and d give the ratio to balance the equation? [me-27]
1. 1, 2, 3, 2
2. 1, 2, 3, 4
3. 2, 3, 6, 3
4. 2, 4, 6, 4
Iron oxide ore in a blast furnace is mainly reduced by carbon monoxide to form iron.
a Fe₂O₃ + b CO ==> c Fe + d CO₂
Which four quantities a, b, c and d give the ratio to balance the equation? [me-28]
1. 1, 2, 3, 2
2. 1, 3, 2, 3
3. 2, 6, 2, 3
4. 2, 4, 6, 4
Which is the correct and balanced equation for the formation of carbon monoxide in the blast furnace? [me-29]
1. CO₂ + C ==> CO
2. CO₂ + 2C ==> 2CO
3. CO₂ + C ==> 2CO
4. 2CO₂ + C ==> 2CO
Given the equation of the reduction of an iron oxide in a blast furnace ...
a Fe₃O₄ + b CO ==> c Fe + d CO₂
Which four quantities a, b, c and d give the ratio to balance the equation? [me-30]
1. 2, 2, 3, 4
2. 1, 4, 2, 3
3. 2, 2, 3, 2
4. 1, 4, 3, 4

Which is TRUE about the extraction of aluminium by electrolysis? [me-75]
1. aluminium ions move to the positive electrode and are oxidised to aluminium atoms by electron loss
2. oxide ions move to the positive electrode and are reduced by electron gain
3. aluminium ions move to the negative electrode and are reduced to aluminium atoms by electron gain
4. oxide ions move to the negative electrode and are oxidised by electron loss
Which is TRUE about the extraction of aluminium by electrolysis? [me-76]
1. aluminium ions move to the negative electrode and are oxidised to aluminium atoms by electron loss
2. oxide ions move to the negative electrode and are reduced by electron gain
3. aluminium ions move to the positive electrode and are reduced to aluminium atoms by electron gain
4. oxide ions move to the positive electrode and are oxidised by electron loss
The diagram shows how copper is purified by electrolysis. What happens at the negative electrode? [me-95]
1. copper ions gain electrons to become neutral copper atoms
2. neutral copper atoms lose electrons to become ions
3. neutral copper atoms gain electrons to become ions
4. copper ions lose electrons to become neutral atoms
The diagram shows how copper is purified by electrolysis. What happens at the positive electrode? [me-96]
1. copper ions gain electrons to become neutral copper atoms
2. neutral copper atoms lose electrons to become ions
3. neutral copper atoms gain electrons to become ions
4. copper ions lose electrons to become neutral atoms
The diagram shows how copper is purified by electrolysis. Which is a suitable salt to use? [me-97]
1. aluminium sulfate
2. sodium chloride
3. copper sulfate
4. magnesium chloride
Electrolysis processes can only be done on solutions or molten materials because? [me-98]
1. less energy is needed
2. the product might be a gas, liquid or a solid
3. electrons cannot flow through solids
4. the ions must free to move to electrodes
In an electrolysis process which word describes the overall chemical change? [me-99]
1. redox
2. oxidation
3. reduction
4. neutralisation
In an electrolysis process which word describes the change at the positive electrode? [me-100]
1. redox
2. oxidation
3. reduction
4. neutralisation
In an electrolysis process which word describes the change at the negative electrode? [me-101]
1. redox
2. oxidation
3. reduction
4. neutralisation
Sodium and chlorine can be manufactured by passing a direct current through the molten salt sodium chloride. What happens at the negative electrode? [me-102]
1. chloride ions lose electrons and become chlorine atoms (which form molecules)
2. sodium atoms lose electrons and become sodium ions
3. chlorine atoms gain electrons and become chloride ions
4. sodium ions gain electrons and become sodium atoms
Sodium and chlorine can be manufactured by passing a direct current through the molten salt sodium chloride. What happens at the positive electrode? [me-103]
1. chloride ions lose electrons and become chlorine atoms (which form molecules)
2. sodium atoms lose electrons and become sodium ions
3. chlorine atoms gain electrons and become chloride ions
4. sodium ions gain electrons and become sodium atoms
Sodium and chlorine can be manufactured by passing a direct current through the molten salt sodium chloride. What happens to the sodium ions is an example of? [me-104]
1. displacement
2. reduction
3. oxidation
4. decomposition
Sodium and chlorine can be manufactured by passing a direct current through the molten salt sodium chloride. What happens to the chloride ion is an example of? [me-105]
1. displacement
2. reduction
3. oxidation
4. decomposition
Which metal is less reactive than copper? [mr-1]
1. Gold
2. Sodium
3. Iron
4. Aluminium
Which metal is more reactive than magnesium? [mr-2]
1. Gold
2. Sodium
3. Iron
4. Aluminium
Which metal is more reactive than hydrogen but less reactive than carbon? [mr-3]
1. Gold
2. Sodium
3. Iron
4. Aluminium
Which metal is less reactive than sodium but cannot be extracted using carbon? [mr-4]
1. Gold
2. Potassium
3. Iron
4. Aluminium
Which is formed when a metal reacts with cold water? [mr-5]
1. a metal hydroxide
2. a salt
3. carbon dioxide
4. an oxide
Which is a compound formed when a metal reacts with an acid? [mr-6]
1. a metal hydroxide
2. a salt
3. hydrogen
4. an oxide
Which is formed when a metal reacts with either water or an acid? [mr-7]
1. a metal hydroxide
2. a salt
3. hydrogen
4. an oxide
Which is formed when a heated metal reacts with steam? [mr-8]
1. a metal hydroxide
2. a salt
3. carbon dioxide
4. an oxide
Information is given below on the reactivity of four metals Wa, Xb, Yc and Zd (NOT their real chemical symbols) ...
Metal Wa does not readily react with dilute acid
Metals Xb and Yc react slowly with acid
Metal Zd will displace Yc from the sulfate salt solution of Yc, YcSO_4(aq).
Metal Zd will NOT displace Xb from the chloride salt solution of Xb, XbCl_2(aq).
If their reactivity order is from the most reactive (1) (2) (3) (4) to the least reactive ...
which metal corresponds to (1), the most reactive of the four metals? [mr-9]
1. metal Xb
2. metal Zd
3. metal Yc
4. metal Wa
Information is given below on the reactivity of four metals Wa, Xb, Yc and Zd (NOT their real chemical symbols) ...
Metal Wa does not readily react with dilute acid
Metals Xb and Yc react slowly with acid
Metal Zd will displace Yc from the sulfate salt solution of Yc, YcSO_4(aq).
Metal Zd will NOT displace Xb from the chloride salt solution of Xb, XbCl_2(aq).
If their reactivity order is from the most reactive (1) (2) (3) (4) to the least reactive ...
which metal corresponds to (2), the 2nd most reactive of the four metals? [mr-10]
1. metal Xb
2. metal Zd
3. metal Yc
4. metal Wa
Information is given below on the reactivity of four metals Wa, Xb, Yc and Zd (NOT their real chemical symbols) ...
Metal Wa does not readily react with dilute acid
Metals Xb and Yc react slowly with acid
Metal Zd will displace Yc from the sulfate salt solution of Yc, YcSO_4(aq).
Metal Zd will NOT displace Xb from the chloride salt solution of Xb, XbCl_2(aq).
If their reactivity order is from the most reactive (1) (2) (3) (4) to the least reactive ...
which metal corresponds to (3), the 3rd most reactive of the four metals? [mr-11]
1. metal Xb
2. metal Zd
3. metal Yc
4. metal Wa
Information is given below on the reactivity of four metals Wa, Xb, Yc and Zd (NOT their real chemical symbols) ...
Metal Wa does not readily react with dilute acid
Metals Xb and Yc react slowly with acid
Metal Zd will displace Yc from the sulfate salt solution of Yc, YcSO_4(aq).
Metal Zd will NOT displace Xb from the chloride salt solution of Xb, XbCl_2(aq).
If their reactivity order is from the most reactive (1) (2) (3) (4) to the least reactive ...
which metal corresponds to (4), the least reactive of the four metals? [mr-12]
1. metal Xb
2. metal Zd
3. metal Yc
4. metal Wa
From the four elements listed, which is a metal which is most likely to be found in the ground as the metal itself? [mr-13]
1. copper
2. hydrogen
3. iron
4. magnesium
From the four elements listed, which is a non-metal with no metallic character at all? [mr-14]
1. copper
2. hydrogen
3. iron
4. magnesium
From the four elements listed, which is a metal that displaces hydrogen from acids but not from cold water? [mr-15]
1. copper
2. gold
3. iron
4. magnesium
From the four elements listed, which is a metal that cannot be extracted by displacement with carbon? [mr-16]
1. copper
2. hydrogen
3. iron
4. magnesium
Which is formed by the reaction of heated magnesium with steam? [mr-17]
1. magnesium oxide + hydrogen
2. magnesium hydroxide + hydrogen
3. magnesium chloride + hydrogen
4. magnesium sulfate + hydrogen
Which is formed by the reaction of magnesium with cold water? [mr-18]
1. magnesium oxide + hydrogen
2. magnesium hydroxide + hydrogen
3. magnesium chloride + hydrogen
4. magnesium sulfate + hydrogen
Which is formed by the reaction of magnesium with hydrochloric acid? [mr-19]
1. magnesium chloride + water
2. magnesium hydroxide + hydrogen
3. magnesium chloride + hydrogen
4. magnesium sulfate + chlorine
Which is formed by the reaction of magnesium with sulfuric acid? [mr-20]
1. magnesium sulfate + water
2. magnesium hydroxide + sulfur dioxide
3. magnesium chloride + hydrogen
4. magnesium sulfate + hydrogen
Which of A to D is less reactive than copper? [mr-21]
1. Platinum
2. Potassium
3. Zinc
4. Magnesium
Which is more reactive than magnesium? [mr-22]
1. Platinum
2. Potassium
3. Zinc
4. Tin
Which is more reactive than hydrogen but less reactive than carbon? [mr-23]
1. Platinum
2. Potassium
3. Zinc
4. Magnesium
Which is less reactive than sodium but cannot be extracted from its ore using carbon? [mr-24]
1. Platinum
2. Potassium
3. Zinc
4. Magnesium
Which is found in rocks as the metal itself? [mr-25]
1. Gold
2. Carbon
3. Zinc
4. Potassium
Which is a non-metal with a little metallic character? [mr-26]
1. Gold
2. Carbon
3. Zinc
4. Potassium
Which is a metal that displaces hydrogen from dilute acids but not from cold water? [mr-27]
1. Gold
2. Carbon
3. Zinc
4. Potassium
Which cannot be extracted from its ore with carbon? [mr-28]
1. Gold
2. iron
3. Zinc
4. Potassium
Which of these in contact with iron will cause rusting? [mr-29]
1. air and water
2. boiled saltwater
3. dry pure oxygen
4. pure boiled water
A steel pier in the sea rusts. The rust consists of? [mr-30]
1. iron carbonate
2. iron oxide
3. iron chloride
4. iron sulfate
Which of these reactions is possible? [mr-33]
1. CuO + Zn ==> ZnO + Cu
2. Pb + ZnCl₂ ==> PbCl₂ + Zn
3. Cu + FeSO₄ ==> CuSO₄ + Fe
4. Au + 2HCl ==> AuCl₂ + H₂
Which of these reactions is possible? [mr-34]
1. PbO + Cu ==> CuO + Pb
2. Zn + PbCl₂ ==> ZnCl₂ + Pb
3. Cu + FeSO₄ ==> CuSO₄ + Fe
4. Pt + 2HCl ==> PtCl₂ + H₂
Which of these reactions is possible? [mr-35]
1. SnO + Cu ==> CuO + Sn
2. Pb + SnCl₂ ==> PbCl₂ + Sn
3. Fe + CuSO₄ ==> FeSO₄ + Cu
4. Cu + H₂SO₄ ==> CuSO₄ + H₂
Which of these reactions is possible? [mr-36]
1. PbO + Pt ==> PtO + Pb
2. Pb + SnCl₂ ==> PbCl₂ + Sn
3. Pt + CuSO₄ ==> PtSO₄ + Cu
4. Sn + H₂SO₄ ==> SnSO₄ + H₂
Which of these reactions is possible? [mr-37]
1. lead + copper oxide ==> lead oxide + copper
2. copper + hydrochloric acid ==> copper chloride + hydrogen
3. iron + zinc sulfate ==> iron sulfate + zinc
4. lead + tin sulfate ==> lead sulfate + tin
Which of these reactions is possible? [mr-38]
1. lead + zinc oxide ==> lead oxide + zinc
2. zinc + hydrochloric acid ==> zinc chloride + hydrogen
3. tin + zinc sulfate ==> tin sulfate + zinc
4. lead + tin sulfate ==> lead sulfate + tin
Which of these reactions is possible? [mr-39]
1. copper + zinc oxide ==> copper oxide + zinc
2. platinum + sulfuric acid ==> platinum sulfate + hydrogen
3. zinc + iron sulfate ==> zinc sulfate + iron
4. gold + tin chloride ==> gold chloride + tin
Which of these reactions is possible? [mr-40]
1. silver + copper oxide ==> silver oxide + copper
2. copper + sulfuric acid ==> copper sulfate + hydrogen
3. iron + zinc chloride ==> iron chloride + zinc
4. tin + gold sulfate ==> tin sulfate + gold
Rust readily forms if an iron object is surrounded by? [mr-45]
1. water with dissolved oxygen
2. water with no dissolved oxygen
3. boiled dilute acid
4. dry air
Which of the following cannot be predicted about metal X, given its position in the reactivity series of metals? [mr-46]
1. whether X reacts with acid to form hydrogen
2. whether X acts as a catalyst
3. the method of extraction of X from an ore
4. the product of reacting metal X with the sulfate solution of another metal
Which will displace iron from iron oxide? [mr-47]
1. tin
2. copper
3. magnesium
4. silver
Road tankers carrying acid use steel tanks lined with glass. The glass is used because? [mr-48]
1. glass only reacts with alkalis
2. steel is not strong enough on its own
3. glass is flexible enough to withstand a crash
4. acid reacts with steel forming hydrogen
Corrosion occurs when a metal is attacked by? [mr-49]
1. oxygen
2. hydrogen
3. nitrogen
4. carbon dioxide
When scrap iron is added to blue copper sulfate solution, a pinky-brown deposit is formed and a pale green solution is left above it. The pinky-brown deposit is? [mr-50]
1. steel
2. copper metal
3. iron sulfate
4. rust
When scrap iron is added to blue copper sulfate solution, a pinky-brown deposit is formed and a pale green solution is left above it. The pale green solution is of? [mr-51]
1. sulfuric acid
2. iron oxide
3. iron sulfate
4. copper chloride
When iron becomes coated in rust, the chemical process is an example of? [mr-52]
1. electrolysis
2. electroplating
3. reduction
4. oxidation
The steel hulls of ships can be protected from rusting by bolting on blocks of which more reactive metal? [mr-61]
1. zinc
2. tin
3. copper
4. iron
Steel pipes underground can be protected from rusting by attaching blocks of the more reactive metal? [mr-62]
1. tin
2. magnesium
3. copper
4. iron
Aluminium window frames do not corrode away because the aluminium is? [mr-63]
1. not reactive enough with oxygen
2. not reactive enough with water
3. coated in a layer of aluminium oxide
4. not capable of forming an oxide
The rusting of iron is described as an oxidation because the iron atoms? [mr-65]
1. combine with oxygen atoms
2. gain electrons
3. combine with water molecules
4. are so reactive
Which reacts with water to form hydrogen? [mr-66]
1. zinc
2. potassium
3. copper
4. mercury
Salt water speeds up the corrosion of metals because it contains ions from salts like sodium chloride. Aluminium can be used for the upper structures of ships because the aluminium? [mr-68]
1. will not react at all with sea water
2. will not react with oxygen
3. is not capable of forming soluble aluminium chloride
4. is coated in a protective layer of aluminium oxide
In which reaction is a metal oxidised? [mr-69]
1. magnesium + water (steam) ==> magnesium oxide + hydrogen
2. carbon + oxygen ==> carbon dioxide
3. hydrogen + lead oxide ==> lead + water
4. copper oxide + carbon ==> copper + carbon dioxide
In which reaction is a solid non-metal oxidised? [mr-70]
1. magnesium + water (steam) ==> magnesium oxide + hydrogen
2. carbon + water ==> hydrogen + carbon monoxide
3. hydrogen + lead oxide ==> lead + water
4. copper oxide + hydrogen ==> copper + water
In which reaction is a gaseous non-metal oxidised? [mr-71]
1. magnesium + water ==> magnesium hydroxide + hydrogen
2. carbon + water ==> hydrogen + carbon monoxide
3. hydrogen + lead oxide ==> lead + water
4. copper oxide + carbon ==> copper + carbon dioxide
In which reaction is a metal oxide reduced? [mr-72]
1. magnesium + water ==> magnesium hydroxide + hydrogen
2. carbon + water ==> hydrogen + carbon monoxide
3. water (steam) + magnesium ==> magnesium oxide + hydrogen
4. copper oxide + carbon ==> copper + carbon dioxide
Four chemical changes are shown below as part, or full, word equations. Which can be described as an oxidation only? [mr-73]
1. carbon ==> carbon monoxide
2. lead oxide ==> lead
3. copper oxide + hydrogen ==> copper + water
4. carbon dioxide ==> carbon monoxide
Four chemical changes are shown below as part, or full, word equations. Which can be described as a reduction only? [mr-74]
1. carbon ==> carbon monoxide
2. lead oxide ==> lead
3. copper oxide + hydrogen ==> copper + water
4. carbon monoxide ==> carbon dioxide
Four chemical changes are shown below as part, or full, word equations. Which can be described as an oxidation and reduction (redox)? [mr-75]
1. carbon ==> carbon monoxide
2. lead oxide ==> lead
3. copper oxide + hydrogen ==> copper + water
4. carbon monoxide ==> carbon dioxide
Four chemical changes are shown below as part, or full, word equations. Which can be described as an oxidation and reduction (redox)? [mr-76]
1. carbon ==> carbon monoxide
2. lead oxide ==> lead
3. carbon dioxide ==> carbon monoxide
4. iron oxide + carbon ==> iron + carbon dioxide
Given the following four observations of the reactions of four metals ...
(1) Metals F and G slowly react with water
(2) Metal H will displace metal G form its chloride salt solution
(3) Metal E will not react with dilute acids
(4) Metal H will NOT displace metal F from its sulfate salt solution
What is their reactivity order, from the most to the least reactive? [mr-86]
1. F > H > G > E
2. H > E > F > G
3. E > G > H > F
4. H > G > F > E
Given the following five observations of the reactions of four metals with hydrogen (H), carbon (C) and other metal oxides ...
(1) Metal Y can displace metal Z from its oxide
(2) Carbon can displace metal W and metal X from their oxides
(3) Hydrogen will displace metal W from its oxide
(4) Hydrogen will NOT displace metal X from its oxide
(5) Carbon will NOT displace metals Y and Z from their oxides
What is their reactivity order, from the most to the least reactive? [mr-87]
1. (C) > W > X (H) > Y > Z
2. Y > Z > (C) > X > (H) > W
3. Z > Y > (C) > W > (H) > X
4. Y > W > (C) > X > (H) > Z
Underground pipes made of steel (alloy of iron) can be protected from rusting if you attach metal blocks made of the more reactive metal? [mr-88]
1. chromium alloy
2. less reactive metal than iron
3. metal more reactive than iron
4. a metal of similar reactivity
When copper is heated in air, the oxide compound formed is ? in colour. [mr-92]
1. green
2. orange
3. black
4. white
When magnesium burns in air, the oxide compound formed is ? in colour. [mr-93]
1. green
2. orange
3. black
4. white
Given the following three observations of the reactions of four metals ...
(1) Metal O will displace metal N from its chloride
(2) Only metal L reacts with cold water
(3) Metal N reacts faster with acid than metal M
What is their reactivity order, from the most to the least reactive? [mr-94]
1. L > O > N > M
2. O > L > N > M
3. L > N > O > M
4. M > O > N > L
In the electrolysis of moderately concentrated sodium chloride solution (brine) using carbon/platinum electrodes, the principal product formed at the positive anode is? [ef1]
1. chlorine
2. hydrogen
3. oxygen
4. sodium
In the electrolysis of moderately concentrated sodium chloride solution (brine) using carbon/platinum electrodes, the principal product formed at the negative cathode is? [ef2]
1. chlorine
2. hydrogen
3. oxygen
4. sodium
When copper(II) sulfate solution undergoes electrolysis using carbon/platinum electrodes the product at the positive anode is? [ef3]
1. sulfur
2. hydrogen
3. oxygen
4. copper
When copper(II) sulfate solution undergoes electrolysis using carbon/platinum electrodes the product at the negative cathode is? [ef4]
1. sulfur
2. hydrogen
3. oxygen
4. copper
In the electrolysis of sodium sulfate solution with carbon/platinum electrodes, what product is formed on the surface of the negative cathode? [ef5]
1. hydrogen
2. oxygen
3. sodium
4. sulfur dioxide
In the electrolysis of sodium sulfate solution with carbon/platinum electrodes, what product is formed on the surface of the positive anode? [ef6]
1. hydrogen
2. oxygen
3. sodium
4. sulfur dioxide
In the electrolysis of water acidified with sulfuric acid, using carbon/platinum electrodes, what product is formed on the surface of the negative cathode? [ef7]
1. sulfur
2. sulfur dioxide
3. hydrogen
4. oxygen
In the electrolysis of water acidified with sulfuric acid, using carbon/platinum electrodes, what product is formed on the surface of the positive anode? [ef8]
1. copper ions
2. sulfur dioxide
3. hydrogen
4. oxygen
When copper(II) sulfate solution undergoes electrolysis using a carbon cathode and copper anode electrodes the product at the negative cathode is? [ef9]
1. copper
2. blue copper(II) ions
3. oxygen
4. hydrogen
When copper(II) sulfate solution undergoes electrolysis using a carbon cathode and copper anode electrodes the product at the positive anode is? [ef10]
1. copper
2. blue copper(II) ions
3. oxygen
4. hydrogen
When copper(II) chloride solution undergoes electrolysis using a carbon/platinum electrodes the product at the negative cathode is? [ef11]
1. hydrogen
2. blue copper(II) ions
3. copper
4. chlorine
When copper(II) chloride solution undergoes electrolysis using a carbon/platinum electrodes the product at the positive anode is? [ef12]
1. hydrogen
2. blue copper(II) ions
3. copper
4. chlorine
Which of the following statements is FALSE concerning the electrolysis of molten lead bromide, PbBr₂ ? [ef13]
1. solid lead bromide can also undergo electrolysis
2. lead is formed at the cathode
3. bromine is formed at the anode
4. molten lead bromide can be decomposed by the passage of a d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten lead bromide, PbBr₂ ? [ef14]
1. solid lead bromide cannot undergo electrolysis
2. lead oxide is formed at the cathode
3. bromine is formed at the anode
4. molten lead bromide can be decomposed by the passage of a d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten lead bromide, PbBr₂ ? [ef15]
1. solid lead bromide cannot undergo electrolysis
2. lead is formed at the cathode
3. oxygen is formed at the anode
4. molten lead bromide can be decomposed by the passage of a d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten lead bromide, PbBr₂ ? [ef16]
1. solid lead bromide cannot undergo electrolysis
2. lead is formed at the cathode
3. bromine is formed at the anode
4. molten lead bromide can be decomposed by the passage of an a.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten sodium chloride, NaCl ? [ef17]
1. solid sodium chloride can also undergo electrolysis
2. sodium is formed at the cathode
3. chlorine is formed at the anode
4. molten sodium chloride can be decomposed by the passage of an d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten sodium chloride, NaCl ? [ef18]
1. solid sodium chloride cannot undergo electrolysis
2. sodium is oxidised at the cathode
3. chlorine is formed at the anode
4. molten sodium chloride can be decomposed by the passage of an d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten sodium chloride, NaCl ? [ef19]
1. solid sodium chloride cannot undergo electrolysis
2. sodium is formed at the cathode
3. chlorine is oxidised at the anode
4. molten sodium chloride can be decomposed by the passage of an d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten sodium chloride, NaCl ? [ef20]
1. solid sodium chloride cannot undergo electrolysis
2. sodium is formed at the cathode
3. chlorine is formed at the anode
4. molten sodium chloride can be decomposed by the passage of an a.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten aluminium oxide, Al₂O₃ ? [ef21]
1. solid aluminium oxide can also undergo electrolysis
2. aluminium is formed at the cathode
3. oxygen is formed at the anode
4. molten aluminium oxide can be decomposed by the passage of an d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten aluminium oxide, Al₂O₃ ? [ef22]
1. solid aluminium oxide cannot undergo electrolysis
2. aluminium is oxidised at the cathode
3. oxygen is formed at the anode
4. molten aluminium oxide can be decomposed by the passage of an d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten aluminium oxide, Al₂O₃ ? [ef23]
1. solid aluminium oxide cannot undergo electrolysis
2. aluminium is formed at the cathode
3. oxygen cannot form at the anode
4. molten aluminium oxide can be decomposed by the passage of an d.c. electric current
Which of the following statements is FALSE concerning the electrolysis of molten aluminium oxide, Al₂O₃ ? [ef24]
1. solid aluminium oxide cannot undergo electrolysis
2. aluminium is formed at the cathode
3. oxygen is formed at the anode
4. molten aluminium oxide can be decomposed by the passage of an a.c. electric current
When copper(II) sulfate solution undergoes electrolysis using copper electrodes the product at the positive anode is? [ef25]
1. blue copper(II) ions
2. copper
3. hydrogen
4. oxygen
When copper(II) sulfate solution undergoes electrolysis using copper electrodes the product at the negative cathode is? [ef26]
1. blue copper(II) ions
2. copper
3. hydrogen
4. oxygen
Which of the following statements about electrolysis is FALSE? [ef27]
1. metals or hydrogen are formed at the cathode
2. any ionic compound dissolved in water can undergo electrolysis
3. an electrolyte is a solution or melt that cannot conduct a d.c. electrical current
4. positively charged ions migrate to the negatively charged cathode
Which of the following statements about electrolysis is FALSE? [ef28]
1. metals or hydrogen are formed at the cathode
2. any ionic compound dissolved in water can undergo electrolysis
3. an electrolyte is a solution or melt that contains ions and so conducts electricity
4. positively charged ions migrate to the anode
Which of the following statements about electrolysis is FALSE? [ef29]
1. metals or hydrogen are formed at the anode
2. any ionic compound dissolved in water can undergo electrolysis
3. an electrolyte is a solution or melt that contains ions and so conducts electricity
4. negatively charged ions migrate to the anode
Which of the following statements about electrolysis is FALSE? [ef30]
1. any ionic compound dissolved in water can undergo electrolysis
2. non-metals like oxygen and chlorine are formed at the cathode
3. an electrolyte is a solution or melt that contains ions and so conducts electricity
4. negatively charged ions migrate to the anode
Which of the following statements about electrolysis is FALSE? [ef31]
1. any ionic compound dissolved in water can undergo electrolysis
2. non-metals like oxygen and chlorine are formed at the anode
3. any compound dissolved in water can readily conduct electricity and undergo electrolysis.
4. positively charged ions migrate to the cathode
Which of the following statements about electrolysis is FALSE? [ef32]
1. any ionic compound dissolved in water can undergo electrolysis
2. non-metals like oxygen and chlorine are formed at the anode
3. solid ionic compounds cannot undergo electrolysis.
4. positively charged ions migrate to the anode
What do we call the positive electrode in an electrolysis cell? [ef33]
1. anode
2. cathode
3. electrolyte
4. anion
5. cation
What do we call the negative electrode in an electrolysis cell? [ef34]
1. anode
2. cathode
3. electrolyte
4. anion
5. cation
What do we call a negatively charged ion? [ef35]
1. anode
2. cathode
3. electrolyte
4. anion
5. cation
What do we call a positively charged ion? [ef36]
1. anode
2. cathode
3. electrolyte
4. anion
5. cation

best gift deals latest video game release, best gift deals best bargains in shop sales latest pop music releases, best sales deals download free music, latest film releases, best gifts for teenagers latest high street fashion in clothes, fashionable trending in clothing, best gift deals best bargains in shop salesgirls buy clothes, spend a lot of money on clothes, best sales deals shoes, sweets and chocolates, magazines and make-up best gifts for teenagers Boys buy food and drink, computer games best gift deals best bargains in shop sales DVDs and CDs, girls and boys spend a lot of money on credit for mobile phones best sales deals best bargains in shop sales buses and trains to transport them going out best gifts for teenagers best bargains in shop sales Girls spend a lot of money on clothes best gift deals color colour preferences in clothes, cool sunglasses best sales deals boys buy expensive thins like best gifts for teenagers designer sports clothes and trainers, teenagers save for holidays, best sales deals clothes, mobile phones, birthday presents and electronic goods, teenage accessories, Favourite style of jeans. best gifts for teenagers A typical girl’s shopping list includes mobile phone credit deals best gift deals fashionable quality cool airpods, air pods, fashionable clothes best sales deals the most popular favourite sneakers best gifts for teenagers fancy shoes, sweets, chocolates, magazines, best gift deals best bargains in shop sales lip moisturizer best bargains in shop sale slots on make-up, well being, teenage decor decorating their room best sales deals teenagers like LED string lantern lights, best gifts for teenagers beauty products for teenagers, denim jackets, scrunchies coolness, fashionable back packs, typical boy’s shopping list includes mobile credit deals, eating out takeaway food and drinks, what teenagers like to buy in clothes best gifts for teenagers computer games, DVDs, CDs, what teenagers talk about best gift deals what teenagers worry about, what teenagers like to do for fun sports best sales deals what cool things do teenagers buy, resale websites like eBay Teenager

OCR GCSE 9-1 Twenty First Century Science Suite B GCSE Chemistry
GCSE 9-1 QUIZ on Chapter C3 "Chemicals of the natural environment" (Foundation Tier)

CLICK [?] read feedback. EMAIL query?, BUT quote Q database number [??-xx] © Doc Brown's Chemistry