Which of the following is a chemical test for the gas hydrogen? [id-01]- pops with lit splint
- turns limewater cloudy
- relights a glowing splint
- bleaches damp litmus paper white
- Which of the following is a chemical test for the gas carbon dioxide? [id-02]
- pops with a lit splint
- turns limewater cloudy/milky (white precipitate)
- relights a glowing splint
- bleaches damp litmus paper white
- Which of the following is a chemical test for the gas oxygen? [id-03]
- pops with a lit splint
- turns limewater cloudy
- relights a glowing splint
- bleaches damp litmus paper white
- Which of the following is a chemical test for the gas chlorine? [id-04]
- pops with a lit splint
- turns limewater cloudy
- relights a glowing splint
- bleaches damp litmus paper white
Which gas is formed when a metal reacts with an acid? [id-05]- hydrogen, H2
- carbon dioxide, CO2
- oxygen, O2
- chlorine, Cl2
- Which gas is formed when an acid reacts with a carbonate? [id-06]
- hydrogen, H2
- carbon dioxide, CO2
- oxygen, O2
- chlorine, Cl2
- A gas turns damp red litmus paper blue. The gas is? [id-07]
- carbon dioxide, CO2
- oxygen, O2
- ammonia, NH3
- sulfur dioxide, SO2
- A gas turns damp orange potassium dichromate(VI) paper green. The gas is? [id-08]
- carbon dioxide, CO2
- oxygen, O2
- ammonia, NH3
- sulfur dioxide, SO2
A brown solution of a substance turns dark blue when a drop of starch solution was added. The substance is most likely to be? [id-09]- iodine, I2
- chlorine, Cl2
- bromine, Br2
- sulfur dioxide, SO2
- Which of the following descriptions describes a simple chemical test for chloride ions in a solution? [id-10]
- A few drops of dilute hydrochloric acid are added to the solution followed by a few drops of barium chloride or barium nitrate solution.
- A few drops of dilute nitric acid are added to the solution followed by a few drops of silver nitrate solution.
- A few cm3 of dilute hydrochloric acid is added and any gas formed is tested with limewater.
- A few cm3 of dilute sodium hydroxide is added and any gas formed is tested with red litmus.
- A few cm3 of dilute nitric acid followed by a few drops of silver nitrate solution is added to a solution of a salt. If a white precipitate forms, which ion from the salt is most likely to be in the solution? (Extra advanced level observation: The white precipitate dissolves in ammonia solution.) [id-11]
- sulfate ion, SO42-
- chloride ion, Cl-
- bromide ion, Br-
- iodide ion, I-
- A few cm3 of dilute nitric acid followed by a few drops of silver nitrate solution is added to a solution of a salt. If a cream precipitate forms, which ion from the salt is most likely to be in the solution? (Extra advanced level observation: The cream precipitate slightly dissolves in conc. ammonia solution.) [id-12]
- sulfate ion, SO42-
- chloride ion, Cl-
- bromide ion, Br-
- iodide ion, I-
- A few cm3 of dilute nitric acid followed by a few drops of silver nitrate solution is added to a solution of a salt. If a pale yellow precipitate forms, which ion from the salt is most likely to be in the solution? (Extra advanced level observation: The pale yellow precipitate is insoluble with conc. ammonia solution.) [id-13]
- sulfate ion, SO42-
- chloride ion, Cl-
- bromide ion, Br-
- iodide ion, I-
- Which of the following descriptions describes a simple chemical test for
sulfate ions in a solution? [id-14]
- A few drops of dilute hydrochloric acid are added to the solution followed by a few drops of barium chloride or barium nitrate solution.
- A few drops of dilute nitric acid are added to the solution followed by a few drops of silver nitrate solution.
- A few cm3 of dilute hydrochloric acid is added and any gas formed is tested with limewater.
- A few cm3 of dilute sodium hydroxide is added, the mixture gently warmed and any gas formed is tested with red litmus.
- Which of the following descriptions describes a simple chemical test for carbonate ions in a solution? [id-15]
- A few drops of dilute hydrochloric acid are added to the solution followed by a few drops of barium chloride or barium nitrate solution.
- A few drops of dilute nitric acid are added to the solution followed by a few drops of silver nitrate solution.
- A few cm3 of dilute hydrochloric acid is added and any gas formed is tested with limewater.
- A few cm3 of dilute sodium hydroxide is added, the mixture gently warmed and any gas formed is tested with red litmus.
- Which of the following descriptions describes a simple chemical test for ammonium ions in a solution? [id-16]
- A few drops of dilute hydrochloric acid are added to the solution followed by a few drops of barium chloride or barium nitrate solution.
- A few drops of dilute nitric acid are added to the solution followed by a few drops of silver nitrate solution.
- A few cm3 of dilute hydrochloric acid is added and any gas formed is tested with limewater.
- A few cm3 of dilute sodium hydroxide is added, the mixture gently warmed and any gas formed is tested with red litmus.
- A few drops of sodium hydroxide solution was added to a metal salt solution. A dark green gelatinous precipitate was formed. Which metal ion (cation) was present in the salt solution? [id-17]
- iron(II) ion, Fe2+
- iron(III) ion, Fe3+
- copper(II) ion, Cu2+
- zinc ion, Zn2+
- A few drops of sodium hydroxide solution was added to a metal salt solution. A brown gelatinous precipitate was formed. Which metal ion (cation) was present in the salt solution? [id-18]
- iron(II) ion, Fe2+
- iron(III) ion, Fe3+
- copper(II) ion, Cu2+
- zinc ion, Zn2+
- A few drops of sodium hydroxide solution was added to a metal salt solution. A blue gelatinous precipitate was formed. Which metal ion (cation) was present in the salt solution? [id-19]
- iron(II) ion, Fe2+
- iron(III) ion, Fe3+
- copper(II) ion, Cu2+
- zinc ion, Zn2+
- A few drops of sodium hydroxide solution was added to a metal salt solution. A white gelatinous precipitate was formed. Which metal ion (cation) was present in the salt solution? (Advanced level note: The white precipiate dissolves in excess dil. sodium hydroxide to give a clear colourless solution) [id-20]
- iron(II) ion, Fe2+
- iron(III) ion, Fe3+
- copper(II) ion, Cu2+
- zinc ion, Zn2+
A sample of a salt was dissolved in hydrochloric acid. A platinum wire was dipped into the solution and then placed in a roaring bunsen flame. A bright yellow flame colour was produced. From this 'flame test' observation, what was the identity of the metal ion in the salt? [id-21]- sodium ion, Na+
- copper(II) ion, Cu2+
- potassium ion, K+
- calcium ion, Ca2+
- A sample of a salt was dissolved in hydrochloric acid. A platinum wire was dipped into the solution and then placed in a roaring bunsen flame. A blue flame colour was produced. From this 'flame test' observation, what was the identity of the metal ion in the salt? [id-22]
- sodium ion, Na+
- copper(II) ion, Cu2+
- potassium ion, K+
- calcium ion, Ca2+
- A sample of a salt was dissolved in hydrochloric acid. A platinum wire was dipped into the solution and then placed in a roaring bunsen flame. A lilac/violet flame colour was produced. From this 'flame test' observation, what was the identity of the metal ion in the salt? [id-23]
- sodium ion, Na+
- copper(II) ion, Cu2+
- potassium ion, K+
- calcium ion, Ca2+
- A sample of a salt was dissolved in hydrochloric acid. A platinum wire was dipped into the solution and then placed in a roaring bunsen flame. A brick red flame colour was produced. From this 'flame test' observation, what was the identity of the metal ion in the salt? [id-24]
- sodium ion, Na+
- copper(II) ion, Cu2+
- potassium ion, K+
- calcium ion, Ca2+
A white solid X dissolved in dilute hydrochloric. A colourless gas evolved which turned limewater milky. When a drop of the solution, on the end of a platium wire, a bright yellow flame colour was observed when the platinum wirewas placed in a roaring bunsen flame. From these observations deduce the identity of substance X. [id-25]- sodium carbonate, Na2CO3
- potassium sulfite, K2SO3
- calcium carbonate, CaCO3
- sodium sulfate, Na2SO4
- A blue solid X was dissolved in water and the solution divided into two portions. When a few drops of sodium hydroxide was added to the 1st portion, a blue gelatinous precipitate formed. When a few drops of dilute nitric acid, followed by a few drops of barium nitrate solution was added to the 2nd portion, a white precipitate formed. From these observations deduce the identity of substance X. [id-26]
- calcium sulfate, CaSO4
- copper(II) sulfate, CuSO4
- potassim chloride, KCl
- copper(II) chloride, CuCl2
- Colourless crystals of substance X were dissolved in water and a few drops of dil. nitric acid, followed by a few drops of silver nitrate solution were added, and a white precipitate formed. A few crystals of X were mixed with a few drops of conc. hydrochloriic acid. When a platinum wire was dipped in this mixture, and then placed in a roaring bunsen flame, a red flame colour was seen. From these observations deduce the identity of substance X. [id-27]
- potassium sulfate, K2SO4
- copper(II) chloride, CuCl2
- calcium chloride, CaCl2
- sodium sulfate, Na2SO4
- Colourless crystals of substance X were dissolved in water and a few drops of dil. nitric acid, followed by a few drops of silver nitrate solution were added, and a yellow precipitate formed. A few crystals of X were mixed with a few drops of conc. hydrochloric acid. When a platinum wire was dipped in this mixture, and then placed in a roaring bunsen flame, a purple-lilac flame colour was seen. From these observations deduce the identity of substance X. [id-28]
- lead(II) iodide, PbI2
- potassium sulfate, K2SO4
- copper(II) chloride, CuCl2
- potassium iodide, KI
- To a colourless solution X, a few drops of dil. nitric acid, followed by a few drops of silver nitrate solution were added, and a white precipitate formed. When a few drops of litmus solution were added to solution X, the solution turned red. There was no characteristic flame colour when a drop of X on the end of a platinum wire, was placed in a roaring bunsen flame. From these observations deduce the identity of solution X. [id-29]
- hydrochloric acid, HCl
- sulfuric acid, H2SO4
- sodium hydroxide, NaOH
- calcium hydroxide, Ca(OH)2
- To a colourless solution X, a few drops of dil. hydrochloric acid were added, followed by a few drops of barium chloride, and a white precipitate formed. When a few drops of litmus solution were added to solution X, the solution turned red. There was no characteristic flame colour when a drop of X on the end of a platinum wire, was placed in a roaring bunsen flame. From these observations deduce the identity of solution X. [id-30]
- hydrochloric acid, HCl
- sulfuric acid, H2SO4
- sodium hydroxide, NaOH
- calcium hydroxide, Ca(OH)2
- A colourless solution gave bright yellow flame colour when tested on the end of a platinum wire placed in a roaring bunsen flame. When a few drops of litmus solution were added to solution X, the solution turned blue. From these observations deduce the identity of solution X. [id-31]
- hydrochloric acid, HCl
- sulfuric acid, H2SO4
- sodium hydroxide, NaOH
- calcium hydroxide, Ca(OH)2
- A colourless solution gave a brick red colour flame when tested on the end of a platinum wire placed in a roaring bunsen flame. When a few drops of litmus solution were added to solution X, the solution turned blue. From these observations deduce the identity of solution X. [id-32]
- hydrochloric acid, HCl
- sulfuric acid, H2SO4
- sodium hydroxide, NaOH
- calcium hydroxide, Ca(OH)2
- Which of the following is an alkane? [eo-1]
-
- Which of the following is a carboxylic acid? [eo-2]
-
- Which of the following is an alkene? [eo-3]
-
- Which of the following is an ester? [eo-4]
-
- Which of the following is an alcohol? [eo-5]
-
- Which of the following is called propane? [eo-6]
-
- Which of the following is called propanoic acid? [eo-7]
-
- Which of the following is called propene? [eo-8]
-
- Which of the following is called methyl ethanoate? [eo-9]
-
- Which of the following is called propan-1-ol? [eo-10]
-
- Which of the following is a hydrocarbon fuel that does not readily react with bromine? [eo-11]
-
- Which of the following 'fizzes' with a carbonate and forms an ester with alcohols? [eo-12]
-
- Which of the following readily reacts with bromine to produce a colourless product? [eo-13]
-
- Which of the following is a pleasant smelling liquid of a type of molecule used in perfumes and flavourings? [eo-14]
-
- Which of the following is a molecule that reacts with organic acids to form pleasant smelling esters? [eo-15]
-
- Which of the following is an 'ESTERIFICATION' type of reaction? [eo-16]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is an 'ALCOHOL COMBUSTION' type of reaction? [eo-17]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is a 'HYDROCARBON COMBUSTION' type of reaction? [eo-18]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is a 'ADDITION POLYMERISATION' type of reaction? [eo-19]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is a 'CONDENSATION POLYMERISATION' type of reaction? [eo-20]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is a 'FERMENTATION' type of reaction? [eo-21]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is a 'NEUTRALISATION' type of reaction? [eo-22]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is a 'CRACKING' type of reaction? [eo-23]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following represents 'PHOTOSYNTHESIS'? [eo-24]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following represents 'RESPIRATION'? [eo-25]
- CH3COOH + C2H5OH ==> CH3COOC2H5 + H2O
- C2H5OH + 3O2 ==> 2CO2 + 3H2O
- C3H8 + 5O2 ==> 3CO2 + 4H2O
- n CH2=CH2 ==> (-CH2-CH2-)n
- n HO-XXX-OH ==> (-O-XXX-)n + nH2O
- C6H12O6 ==> 2C2H5OH + 2CO2
- CH3COOH + NaOH ==> CH3COONa + H2O
- C6H14 => C2H4 + C4H10
- 6CO2 + 6H2O ==> C6H12O6 + 6O2
- C6H12O6 + 6O2 ==> 6CO2 + 6H2O
- Which of the following is an 'ESTERIFICATION' type of reaction? [eo-26]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is an 'ALCOHOL COMBUSTION' type of reaction? [eo-27]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is a 'HYDROCARBON COMBUSTION' type of reaction? [eo-28]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is an 'ADDITION POLYMERISATION' type of reaction? [eo-29]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is a 'CONDENSATION POLYMERISATION' type of reaction? [eo-30]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is a 'FERMENTATION' type of reaction? [eo-31]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is a 'NEUTRALISATION' type of reaction? [eo-32]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following is a 'CRACKING' type of reaction? [eo-33]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following represents 'PHOTOSYNTHESIS'? [eo-34]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following represents 'RESPIRATION' reaction? [eo-35]
- ethanoic acid + ethanol ==> ethyl ethanoate + water
- ethanol + oxygen ==> carbon dioxide + water
- propane + oxygen ==> carbon dioxide + water
- ethene ==> poly(ethene)
- glucose ==> starch + water
- glucose ==> ethanol + carbon dioxide
- ethanoic acid + sodium hydroxide ==> sodium ethanoate + water
- hexane ==> ethene + butane
- carbon dioxide + water ==> glucose + oxygen
- glucose + oxygen ==> carbon dioxide + water
- Which of the following chemical reagents and reaction conditions is used in the laboratory to convert 'ethanol to ethanoic acid'? [eo-36]
- acidified potassium dichromate(VI)
- steam and phosphoric(V) acid catalyst
- heating with aqueous sodium hydroxide
- hydrogen gas and nickel catalyst
- Which of the following chemical reagents and reaction conditions is used in industry to convert 'ethene to ethanol'? [eo-37]
- acidified potassium dichromate(VI)
- steam and phosphoric(V) acid catalyst
- heating with aqueous sodium hydroxide
- hydrogen gas and nickel catalyst
- Which of the following chemical reagents and reaction conditions is used in the laboratory or industry to convert 'natural vegetable oils to soap'? [eo-38]
- acidified potassium dichromate(VI)
- steam and phosphoric(V) acid catalyst
- heating with aqueous sodium hydroxide
- hydrogen gas and nickel catalyst
- Which of the following chemical reagents and reaction conditions is used in industry to convert 'vegetable oils to margarine'? [eo-39]
- acidified potassium dichromate(VI)
- steam and phosphoric(V) acid catalyst
- heating with aqueous sodium hydroxide
- hydrogen gas and nickel catalyst
- Which of the following chemical reagents and reaction conditions is used in to 'breakdown protein into amino acids'? [eo-40]
- acidified potassium dichromate(VI)
- steam and phosphoric(V) acid catalyst
- hydrogen gas and nickel catalyst
- heating with hydrochloric acid
- Which of the following chemical reagents and reaction conditions is used in to 'breakdown starch into glucose'? [eo-41]
- acidified potassium dichromate(VI)
- steam and phosphoric(V) acid catalyst
- hydrogen gas and nickel catalyst
- heating with hydrochloric acid
Which of the following molecular pictures corresponds to a 'typical thermoplastic' used for making bottles? [eo-42]- picture 1
- picture 2
- picture 3
Which of the following molecular pictures corresponds to a 'thermoplastic fibre'? [eo-43]- picture 1
- picture 2
- picture 3
Which of the following molecular pictures corresponds to a 'hard thermoset plastic'? [eo-44]- picture 1
- picture 2
- picture 3
Which of the following molecular pictures corresponds to unprocessed 'thermosoftening plastic'? [eo-45]- picture 1
- picture 2
- picture 3
Which of the following molecular pictures corresponds to 'Nylon or Terylene used in clothing'? [eo-46]- picture 1
- picture 2
- picture 3
Which of the following molecular pictures corresponds to the 'plastic set in a fibre glass car body'? [eo-47]- picture 1
- picture 2
- picture 3
- Which of the following separation methods of would be used to 'separate amino acids from hydrolysed protein? [eo-48]
- chromatography
- fractional distillation
- filtration
- crystallisation
- Which of the following separation methods of would be used to 'obtain much purer ethanol/alcohol from fermented sugar solution? [eo-49]
- chromatography
- fractional distillation
- filtration
- crystallisation
- Which of the following separation methods of would be used to 'remove yeast from fermented sugar solution? [eo-50]
- chromatography
- fractional distillation
- filtration
- crystallisation
- Which of the following separation methods of would be used to 'obtain a purer sample of aspirin powder from a chemical preparation of it? [eo-51]
- chromatography
- fractional distillation
- filtration
- crystallisation
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is most likely to readily react with bromine? [eo-52]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is both a carboxylic acid and an ester? [eo-53]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is not an ester, but is a carboxylic acid? [eo-54]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of the molecules contains one element the other three do not have in their structure? [eo-55]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them has the formula C6H8O6? [eo-56]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them has the formula C9H8O4? [eo-57]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them has the formula C13H18O2? [eo-58]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them has the formula C8H9NO2? [eo-59]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them can form an ester with a carboxylic acid and readily form a dibromo compound with bromine? [eo-60]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is an ester and can still form an ester with an alcohol? [eo-61]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is not an ester, but can form an ester with an alcohol and will not readily react with bromine? [eo-62]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is not an ester or a carboxylic acid or an alcohol? [eo-63]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
- Which of the following general formula represents the homologous series of alkanes? [eo-6]
- CnH2n+2 where n = 1, 2, 3, ...
- CnH2n where n = 2, 3, 4, ...
- CnH2n+1OH where n = 1, 2, 3, ...
- CnH2n+1COOH where n = 0, 1, 2, ...
- Which of the following general formula represents the homologous series of alkenes? [eo-65]
- CnH2n+2 where n = 1, 2, 3, ...
- CnH2n where n = 2, 3, 4, ...
- CnH2n+1OH where n = 1, 2, 3, ...
- CnH2n+1COOH where n = 0, 1, 2, ...
- Which of the following general formula represents the homologous series of alcohols? [eo-66]
- CnH2n+2 where n = 1, 2, 3, ...
- CnH2n where n = 2, 3, 4, ...
- CnH2n+1OH where n = 1, 2, 3, ...
- CnH2n+1COOH where n = 0, 1, 2, ...
- Which of the following general formula represents the homologous series of carboxylic acids? [eo-67]
- CnH2n+2 where n = 1, 2, 3, ...
- CnH2n where n = 2, 3, 4, ...
- CnH2n+1OH where n = 1, 2, 3, ...
- CnH2n+1COOH where n = 0, 1, 2, ...
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them is good at removing harmful free radicals in the body? [eo-68]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
The diagrams above show the molecular structure of three common synthetic pain killers (analgesics) and the naturally occuring vitamin C (ascorbic acid) found in fruit and vegetables.
Which of them does NOT produce fizzing when mixed with water and a carbonate? [eo-69]- ascorbic acid (vitamin C)
- aspirin
- ibuprofen
- paracetamol
Which word corresponds to a hydrocarbon molecule? [op-13]- compound
- element
- fraction
- mixture
- Which word corresponds to carbon? [op-14]
- compound
- element
- fraction
- mixture
- Which word corresponds to a narrow boiling range of hydrocarbons from oil? [op-15]
- compound
- element
- fraction
- condensate
- Which word corresponds to crude oil? [op-16]
- compound
- element
- fraction
- mixture
Which word corresponds to methane gas? [op-17]- compound
- element
- fraction
- mixture
Which word corresponds to hydrogen? [op-18]- compound
- element
- fraction
- mixture
- Which word corresponds to a range of similar sized hydrocarbons from oil? [op-19]
- compound
- element
- fraction
- crackate
- Which word corresponds to a fraction of crude oil? [op-20]
- compound
- element
- evaporate
- mixture
Which word means changing a gas into liquid? [op-21]- condensing
- cracking
- distilling
- evaporating
Which word means breaking up big molecules into small ones? [op-22]- condensing
- cracking
- distilling
- evaporating
- Which of the following involves liquid to gas AND gas to liquid without chemical change? [op-23]
- condensing
- cracking
- distilling
- evaporating
- Which word means what happens to spilt petrol? [op-24]
- condensing
- cracking
- distilling
- evaporating
Which of the following is TRUE about crude oil? [op-45]- formed from the decayed remains of plants and animals
- its a renewable energy resource
- its an infinite energy resource
- its a compound
- Which of the following is TRUE about crude oil? [op-46]
- formed from the erosion of sedimentary rock
- its a non-renewable energy resource
- its an infinite energy resource
- its a compound
- Which of the following is TRUE about crude oil? [op-47]
- formed from the erosion of sedimentary rock
- its a renewable energy resource
- its a finite energy resource
- its a compound
- Which of the following is TRUE about crude oil? [op-48]
- formed from the erosion of sedimentary rock
- its a renewable energy resource
- its an infinite energy resource
- its a mixture of hydrocarbons
- Which of the following is TRUE about crude oil? [op-49]
- the mixture can separated by distillation
- its a non-fossil fuel
- the molecules are all the same size
- the components have the same boiling point
- Which of the following is TRUE about crude oil? [op-50]
- the mixture can't be separated by distillation
- its a fossil fuel
- the molecules are all the same size
- the components have the same boiling point
- Which of the following is TRUE about crude oil? [op-51]
- the mixture can't be separated by distillation
- its a non-fossil fuel
- the molecules are of different size
- the components have the same boiling point
- Which of the following is TRUE about crude oil? [op-52]
- the mixture can't be separated by distillation
- its a non-fossil fuel
- the molecules are the same size
- the components have the different boiling points
Which is TRUE as a hydrocarbon molecule gets bigger (more carbon atoms in chain)? [op-53]- the boiling point gets higher
- it gets more volatile (more easily vaporised)
- it gets less viscous (less sticky)
- 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]
- the boiling point gets lower
- it gets less volatile (less easily vaporised)
- it gets less viscous (less sticky)
- 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]
- the boiling point gets lower
- it gets more volatile (more easily vaporised)
- it gets more viscous (more sticky)
- 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]
- the boiling point gets lower
- it gets more volatile (more easily vaporised)
- it gets less viscous (less sticky)
- it gets less easy to ignite (gets less flammable)
- Cracking is an example of? [op-57]
- thermal decomposition
- polymerisation
- fractional distillation
- combustion
Making plastics is an example of? [op-58]- thermal decomposition
- polymerisation
- fractional distillation
- combustion
- The separation of crude oil products is an example of? [op-59]
- thermal decomposition
- polymerisation
- fractional distillation
- combustion
- Burning a fuel is an example of? [op-60]
- thermal decomposition
- polymerisation
- fractional distillation
- combustion
- Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-61]
- it needs a high temperature
- it doesn't need a catalyst
- it makes small molecules into more useful bigger molecules
- it can make plastics
- Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-62]
- it needs a low temperature
- it needs a catalyst
- it makes small molecules into more useful bigger molecules
- it can make plastics
- Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-63]
- it needs a low temperature
- it doesn't need a catalyst
- it makes big molecules into more useful smaller molecules like petrol
- it can make plastics
- Which TRUE about the process of 'cracking' in the petrochemical oil industry? [op-64]
- it needs a low temperature
- it doesn't need a catalyst
- it makes small molecules into more useful bigger molecules like petrol
- 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]- process J
- process N
- process K
- process M
Which corresponds to a process of combustion? [op-66]- process J
- process N
- process K
- process M
Which corresponds to a process of fractional distillation? [op-67]- process J
- process N
- process K
- process M
Which corresponds to a process of polymerisation? [op-68]- process L
- process N
- process K
- process M
Which corresponds to a process of cracking? [op-69]- process L
- process Q
- process K
- process M
Which corresponds to a very slow process, sometimes described as 'non-biodegradable'? [op-70]- process L
- process Q
- process N
- process M
Which corresponds to the cause of the 'greenhouse effect'? [op-71]- process L
- process Q
- process N
- process M
Which corresponds to changing bigger molecules into smaller molecules with heat and a catalyst? [op-72]- process K
- process Q
- process N
- process L
Which corresponds to changing small molecules into big molecules? [op-73]- process M
- process Q
- process N
- process K
Which corresponds to a process that works because different hydrocarbons in oil having different boiling points? [op-74]- process L
- process K
- process N
- process M
Which corresponds to a process that causes acid rain? [op-75]- process Q
- process K
- process N
- process M
Which corresponds to the process that makes extra petrol that wasn't originally in the crude oil? [op-76]- process M
- process K
- process N
- process L
Which is a chemical test for the gas hydrogen? [op-77]- pops with lit splint
- turns limewater cloudy
- relights a glowing splint
- bleaches damp litmus paper
- Which is a chemical test for the gas carbon dioxide? [op-78]
- pops with a lit splint
- turns limewater cloudy
- relights a glowing splint
- bleaches damp litmus paper
- Which is a chemical test for water? [op-79]
- turns orange potassium dichromate paper green
- turns universal indicator orange
- turns blue cobalt chloride paper pink
- turns litmus paper green
- Which is a chemical test for water? [op-80]
- turns orange potassium dichromate paper green
- turns universal indicator turquoise
- turns litmus paper green
- turns white copper sulfate blue
Which of the following, when fossil fuels are burned, causes acid rain? [op-81]- sulfur dioxide
- carbon dioxide
- carbon (soot)
- carbon monoxide
- Which of the following, when fossil fuels are burned causes the 'greenhouse effect'? [op-82]
- sulfur dioxide
- carbon dioxide
- carbon (soot)
- carbon monoxide
- Which of the following, when fossil fuels are burned, is formed when there is lack of oxygen? [op-83]
- sulfur dioxide
- carbon dioxide
- carbon (soot)
- nitrogen dioxide
- Which of the following, when fossil fuels are burned, is formed when there is lack of oxygen? [op-84]
- sulfur dioxide
- carbon dioxide
- nitrogen dioxide
- carbon monoxide
At 1 the crude oil is a ..?.. of hydrocarbons. [op-85]- mixture
- volatiles
- compounds
- viscous
- At 2 the hydrocarbons are? [op-86]
- big molecules
- volatile
- not very flammable
- viscous
- At 1-4 the hydrocarbons are a ..?.. of hydrogen and carbon. [op-87]
- atom
- mixture
- compound
- fraction
- At 4 the hydrocarbons are very? [op-88]
- volatile
- runny
- flammable
- viscous
- At 1 the hydrocarbon mixture is? [op-89]
- dark in colour
- very flammable
- like diesel
- very runny
- At 2 the hydrocarbon mixture is? [op-90]
- dark in colour
- very flammable
- like diesel
- viscous
- At 3 the hydrocarbon mixture is? [op-91]
- very dark in colour
- very flammable
- like diesel
- very viscous
- At 4 the hydrocarbon mixture is? [op-92]
- very light in colour
- very flammable
- like diesel
- 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]- X has smallermolecules than Y
- X is less flammable than Y
- X is less volatile than Y
- 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]- X has larger molecules than Y
- X is more flammable than Y
- X is less volatile than Y
- 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]- X has larger molecules than Y
- X is less flammable than Y
- X is more volatile than Y
- 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]- X has larger molecules than Y
- X is less flammable than Y
- X is less volatile than Y
- 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]- X is less viscous than Y
- X is less flammable than Y
- X is less volatile than Y
- X has more carbon atoms than Y
- The main waste products of the combustion of a hydrocarbon fuel are? [op-98]
- carbon and water
- carbon dioxide and water
- carbon dioxide and hydrogen
- carbon monoxide and water
- The 'clean' or complete combustion of methane (natural gas) produces? [op-99]
- carbon dioxide and hydrogen
- carbon and water
- carbon dioxide and water
- carbon monoxide and water
- The combustion of hydrogen produces? [op-100]
- carbon dioxide only
- carbon and water
- carbon dioxide and water
- only water
- Which is a suitable physical test for a liquid thought to be pure water by seeing if it? [op-119]
- boils at a particular temperature
- mixes with oil
- dissolves salt
- freezes
Which is a definition of an atom? [op-120]- the smallest particles of matter that make up substances
- collection of substances which keep their own properties and easily separated
- two or more atoms joined together to make a bigger particle
- two or more elements chemically joined together and not easily separated
- Which is a definition of a mixture? [op-121]
- the smallest particles of matter that make up substances
- collection of substances which keep their own properties and easily separated
- two or more atoms joined together to make a bigger particle
- two or more elements chemically joined together and not easily separated
- Which is a definition of a molecule? [op-122]
- the smallest particles of matter that make up substances
- collection of substances which keep their own properties and easily separated
- two or more atoms joined together to make a bigger particle
- two or more elements chemically joined together and not easily separated
- Which is a definition of a compound? [op-123]
- the smallest particles of matter that make up substances
- collection of substances which keep their own properties and easily separated
- two or more atoms joined together to make a bigger particle
- two or more elements chemically joined together and not easily separated
Which of the following means a 'hydrocarbon'? [op-124]- a mixture of carbon and hydrogen atoms
- a molecule made of carbon and hydrogen atoms chemically combined
- a mixture of carbon and hydrogen molecules
- a molecule made from reacting carbon and water
- Which statement is TRUE about polymers (plastics)? [op-125]
- poly(ethene) is readily broken down by microorganisms
- poly(propene) is not easily shaped when softened by heat
- poly(ethene) is used for plastic bags
- poly(propene) is not strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-126]- poly(ethene) is readily broken down by microorganisms
- poly(propene) is not easily shaped when softened by heat
- poly(ethene) is too expensive to use for plastic bags
- poly(propene) is strong enough to make into ropes
Which statement is TRUE about polymers (plastics)? [op-127]- poly(ethene) is not readily broken down by microorganisms
- poly(propene) is not easily shaped when softened by heat
- poly(ethene) is too expensive to use for plastic bags and bottles
- poly(propene) is not strong enough to make into ropes
- Which statement is TRUE about polymers (plastics)? [op-128]
- poly(ethene) is readily broken down by microorganisms
- poly(propene) is easily shaped when softened by heat
- poly(ethene) is too expensive to use for bottles
- poly(propene) is too weak to make into ropes
- Which statement is TRUE about polymers (plastics)? [op-129]
- poly(ethene) is readily broken down by microorganisms
- poly(propene) is not easily shaped when softened by heat
- poly(ethene) is cheap to use for plastic bottles
- poly(propene) is too weak to make into ropes
- Which statement is TRUE about polymers (plastics)? [op-130]
- poly(ethene) is readily broken down by microorganisms
- poly(propene) is not easily shaped when softened by heat
- poly(ethene) is too expensive to use for plastic bottles
- poly(propene) is strong enough to make into crates
- Which statement is TRUE about polymers (plastics)? [op-131]
- poly(propene) is not biodegradable
- poly(propene) is not easily shaped when softened by heat
- poly(ethene) is too expensive to use for plastic bottles
- poly(propene) is not strong enough to make into crates
- Which statement is TRUE about polymers (plastics)? [op-132]
- poly(propene) is biodegradable
- poly(ethene) is easily shaped when softened by heat
- poly(ethene) is too expensive to use for plastic bottles
- poly(propene) is not strong enough to make into crates
Which explains why the gasoline fraction is used for petrol? [op-133]- not too flammable and not too viscous
- quite viscous but will not freeze or evaporate easily
- a liquid that is easily vapourised and not too viscous
- 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]
- not too flammable and not too viscous
- quite viscous but will not freeze or evaporate easily
- a liquid that is easily vapourised and not too viscous
- 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]
- not too flammable and not too viscous
- quite viscous but will not freeze or evaporate easily
- a liquid that is easily vapourised and not too viscous
- 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]
- not too flammable and not too viscous
- quite viscous but will not freeze or evaporate easily
- a liquid that is easily vapourised and not too viscous
- can be liquified under pressure but easily changes back to a gas
- Which represents an addition polymerisation reaction? [op-137]
- ethene ==> poly(ethene)
- methane + oxygen ==> carbon dioxide + water
- hexane ==> butane + ethene
- ethene + bromine ==> dibromoethane
- Which represents a combustion reaction? [op-138]
- ethene ==> poly(ethene)
- methane + oxygen ==> carbon dioxide + water
- hexane ==> butane + ethene
- ethene + bromine ==> dibromoethane
- Which represents a cracking reaction? [op-139]
- ethene ==> poly(ethene)
- methane + oxygen ==> carbon dioxide + water
- hexane ==> butane + ethene
- ethene + bromine ==> dibromoethane
- Which represents a reaction that tests for ethene? [op-140]
- ethene ==> poly(ethene)
- ethene + oxygen ==> carbon dioxide + water
- hexane ==> butane + ethene
- 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]- 3 2 4 5
- 2 5 1 4
- 3 4 2 5
- 4 2 3 5
- Carbon monoxide has the formula CO. It is therefore? [op-142]
- an atom
- an element
- a mixture
- a compound
- Which is a single compound? [op-143]
- methane
- carbon
- lubricating oil
- hydrogen
- Which is a solid element? [op-144]
- methane
- carbon
- bitumen tar
- wax
- Which is a mixture? [op-145]
- methane
- carbon
- product(s) of burning methane
- hydrogen
- Which is a particularly toxic gas sometimes produced by faulty gas fires? [op-146]
- methane
- carbon dioxide
- nitrogen
- carbon monoxide
- Which represents a thermal decomposition reaction? [op-147]
- ethene ==> poly(ethene)
- methane + oxygen ==> carbon dioxide + water
- hexane ==> butane + ethene
- ethene + bromine ==> dibromoethane
- Which is a thermal decompostion reaction in the petrochemical industry? [op-148]
- combustion
- addition polymerisation
- fractional distillation
- cracking
- What is formed by the complete combustion of wax? [op-161]
- water + carbon dioxide
- water only
- carbon dioxide only
- carbon monoxide and water
What may be formed by the incomplete combustion of petrol? [op-162]- water + carbon dioxide
- water, carbon dioxide and carbon monoxide
- only carbon dioxide
- 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]
- unburned petrol
- engine oil
- water
- 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]
- carbon monoxide
- unburned petrol vapour
- partly burned petrol vapour
- carbon dioxide
- Poly(ethene) and poly(propene) are described as examples of? [op-165]
- plastics
- fuels
- hydrocarbons
- crackates
- Petrol and diesel are best described as examples of? [op-165]
- plastics
- fuels
- lubricants
- crackates
- Incomplete combustion can happen when there is a shortage of? [op-167]
- carbon dioxide
- fuel
- oxygen
- carbon monoxide
- Biodegradable plastics are environmentally friendly because they? [op-168]
- are structurally weak
- don't produce harmful fumes when burned
- are not attacked by fungus
- rot away in a land fill site
Which is a hydrocarbon molecule? [op-169]- C2H6
- C2H5Br
- C2H5OH
- CH3COOH
The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be gasoline? [op-170]- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- over 40 carbon atoms
- The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be kerosine? [op-171]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- over 40 carbon atoms
- The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be bitumen? [op-172]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- over 40 carbon atoms
- The following 'carbon numbers' correspond to gasoline, bottled gas, bitumen and kerosine. Which is likely to be bottled gas? [op-173]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- over 40 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 20 carbon atoms
- over 40 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 20 carbon atoms
- over 40 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 20 carbon atoms
- over 40 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 20 carbon atoms
- over 40 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- 30 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- 30 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- 30 carbon atoms
- 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]
- 3 carbon atoms
- 8 carbon atoms
- 15 carbon atoms
- 30 carbon atoms
- Which is a plastic? [op-182]
- petrol
- polythene
- paraffin
- propanol
- Which is a plastic? [op-183]
- petrol
- paraffin
- polypropene
- propanol
- Which is a plastic? [op-184]
- PDB
- ASE
- DDT
- PVC
[op-1] Which four quantities a, b, c and d are required to balance the equation?
a CH4(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 2 1 2
- 1 1 1 2
- 1 2 2 1
- 1 1 1 1
[op-2] Which four quantities a, b, c and d are required to balance the equation?
a C2H6(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 2 1 3
- 2 7 4 6
- 2 4 4 6
- 1 7 2 3
- [op-3] Which four quantities a, b, c and d are required to balance the equation?
a C3H8(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 3 3 4
- 2 10 4 6
- 1 5 3 4
- 2 5 2 3
- [op-4] Which four quantities a, b, c and d are required to balance the equation?
a C4H10(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 13 8 4
- 2 7 4 10
- 1 5 3 4
- 2 13 8 10
- [op-5] Which four quantities a, b, c and d are required to balance the equation?
a C5H12(l) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 8 5 6
- 1 4 4 6
- 2 4 5 12
- 2 8 10 12
- [op-6] Which four quantities a, b, c and d are required to balance the equation?
a C6H14(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 2 9 6 14
- 2 19 12 14
- 1 9 6 7
- 1 10 12 7
- [op-7] Which four quantities a, b, c and d are required to balance the equation?
a C7H16(l) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 5 7 8
- 2 12 14 16
- 1 11 7 8
- 2 11 14 16
- [op-8] Which four quantities a, b, c and d are required to balance the equation?
a C8H18(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 13 8 18
- 1 13 8 9
- 2 13 16 18
- 2 25 16 18
- [op-9] Which four quantities a, b, c and d are required to balance the equation?
a C2H4(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 1 3 2 2
- 1 2 2 2
- 2 3 4 4
- 2 6 4 4
- [op-10] Which four quantities a, b, c and d are required to balance the equation?
a C3H6(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 2 5 6 6
- 2 9 6 6
- 1 5 3 3
- 1 9 3 3
- [op-11] Which four quantities a, b, c and d are required to balance the equation?
a C4H8(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 2 12 8 8
- 2 6 8 8
- 1 6 4 4
- 1 3 4 4
- [op-12] Which four quantities a, b, c and d are required to balance the equation?
a C7H8(g) + b O2(g) ==> c CO2(g) + d H2O(l)- 2 9 4 8
- 2 10 14 8
- 1 5 7 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]
-
-
-
- <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]- it is saturated
- it has single and double covalent bonds
- it readily reacts with bromine
- it can be polymerised to a plastic polymer
- Which is TRUE about an alkane hydrocarbon molecule? [op-102]
- it is unsaturated
- it has single covalent bonds only
- it readily reacts with bromine
- it can be polymerised to a plastic polymer
- Which is TRUE about an alkane hydrocarbon molecule? [op-103]
- it is unsaturated
- it has single and double covalent bonds
- it does not readily react with bromine
- it can be polymerised to a plastic polymer
- Which is TRUE about an alkane hydrocarbon molecule? [op-104]
- it is unsaturated
- it has single and double covalent bonds
- it readily reacts with bromine
- it cannot be polymerised to a plastic polymer
- Which is TRUE about an alkene hydrocarbon molecule? [op-105]
- it is unsaturated
- it has single covalent bonds only
- it does not readily react with bromine
- it cannot be be polymerised to a plastic polymer
- Which is TRUE about an alkene hydrocarbon molecule? [op-106]
- it is saturated
- it has single and double covalent bonds
- it does not readily react with bromine
- it cannot be polymerised to a plastic polymer
- Which is TRUE about an alkene hydrocarbon molecule? [op-107]
- it is saturated
- it has single covalent bonds only
- it readily reacts with bromine
- it cannot be polymerised to a plastic polymer
- Which is TRUE about an alkene hydrocarbon molecule? [op-108]
- it is saturated
- it has single covalent bonds only
- it does not readily react with bromine
- it can be polymerised to a plastic polymer
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which is unsaturated? [op-109]- molecule 2
- molecule 1
- molecule 3
- molecule 6
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which is an alkene? [op-110]- molecule 1
- molecule 2
- molecule 3
- molecule 6
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which are alkanes? [op-111]- molecules 2 and 4
- molecule 2 only
- molecules 1 and 3
- molecule 1 only
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which are alkenes? [op-112]- molecules 1 and 3
- molecule 2 only
- molecule 1 only
- molecules 2 and 4
- What polymer is formed from this molecule? [op-113]
- poly(ethene)
- poly(propene)
- poly(styrene)
- poly(vinyl chloride)
- What polymer is formed from this molecule? [op-114]
- poly(ethene)
- poly(propene)
- poly(styrene)
- poly(vinyl chloride)
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C2H6? [op-115]- molecule 5
- molecule 6
- molecule 3
- molecule 4
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C3H6? [op-116]- molecule 5
- molecule 6
- molecule 3
- molecule 4
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C3H8? [op-117]- molecule 5
- molecule 6
- molecule 3
- molecule 4
-
The drawings show 'space-filling' diagrams of four hydrocarbon molecules.
Which has the formula C4H10? [op-118]- molecule 5
- molecule 6
- molecule 3
- molecule 4
A student made some sketches of possible addition polymer structures. Which one of the following could be a correct structure? [op-149]- structure (2)
- structure (4)
- structure (3)
- structure (5)
- A student made some sketches of possible addition polymer structures. Which one of the following could be a correct structure? [op-150]
- structure (4)
- structure (6)
- structure (3)
- 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] - Joe
- Tanya
- Fred
- Suzy
- The bonding between atoms in a hydrocarbon molecule is? [op-152]
- ionic only
- intermolecular only
- ionic and covalent
- 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 + ????- C2H4
- C2H6
- C3H6
- 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 + ????- C4H8
- C4H10
- 2C2H4
- 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 + ????- C2H4
- C2H6
- C3H6
- 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 + ????- C2H4
- C4H8
- C3H6
- C3H8
- Which is a suitable chemical test for an an alkene, to distinguish it from an alkane? [op-157]
- an alkene decolourises orange bromine water
- an alkene burns with a more smokey flame
- an alkane reacts with bromine water when bright light is shone on the mixture
- 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]
- alkenes have a smaller molecular mass than the corresponding alkane with the same number of carbon atoms
- alkenes have a reactive C=C double bond
- alkenes have a lower boiling point than the corresponding alkane with the same number of carbon atoms
- the C=C double bond in alkenes is weaker than 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 + ????- C6H12
- C6H14
- C7H12
- 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 + ????- C7H16
- C7H14
- C8H16
- C8H14
- Which of the following statements is TRUE? [op-185]
- the monomer to make polythene is ethene
- unsaturated hydrocarbons are generally unreactive
- unsaturated hydrocarbons have no carbon-carbon double bond
- a hydrocarbon of formula C3H8 will decolourise bromine water
- Which of the following statements is TRUE? [op-186]
- the monomer to make polythene is ethane
- unsaturated hydrocarbons are generally reactive
- unsaturated hydrocarbons have no carbon-carbon double bond
- a hydrocarbon of formula C3H8 will decolourise bromine water
- Which of the following statements is TRUE? [op-187]
- the monomer to make polythene is ethane
- unsaturated hydrocarbons are generally unreactive
- unsaturated hydrocarbons have a carbon-carbon double bond
- a hydrocarbon of formula C4H10 will decolourise bromine water
- Which of the following statements is TRUE? [op-188]
- the monomer to make polypropene is propane
- unsaturated hydrocarbons are generally unreactive
- unsaturated hydrocarbons have no carbon-carbon double bond
- a hydrocarbon of formula C4H8 will decolourise bromine water
- Which of the following statements is TRUE? [op-189]
- the monomer to make polypropene is propene
- unsaturated hydrocarbons are generally unreactive
- unsaturated hydrocarbons have no carbon-carbon double bond
- a hydrocarbon of formula C4H10 will decolourise bromine water
- Which of the following statements is TRUE? [op-190]
- the monomer to make polypropene is propane
- the products of cracking a long chain hydrocarbon are more volatile
- unsaturated hydrocarbons have no carbon-carbon double bond
- a hydrocarbon of formula C4H10 will decolourise bromine water
- Which of the following statements is TRUE? [op-191]
- a hydrocarbon of formula C4H10 will decolourise bromine water
- the monomer to make polypropene is propane
- the products of cracking a long chain hydrocarbon are more flammable
- addition polymers are made by combining alkane monomers
- Which of the following statements is TRUE? [op-192]
- a hydrocarbon of formula C4H10 will decolourise bromine water
- the monomer to make polypropene is propane
- the products of cracking a long chain hydrocarbon are more viscous
- addition polymers are made by combining alkene monomers
- Which of these will decolourise bromine water? [op-193]
- ethene
- poly(ethene)
- propane
- butane
- Which of these will decolourise bromine water? [op-194]
- ethane
- propene
- propane
- poly(ethene)
- The general formula for alkanes is CnH2n + 2, where n is an integer (1, 2, 3 etc.). Which is the correct general formula for an alkene? [op-195]
- CnH2n + 1
- CnHn
- CnH2n
- CnH2n - 2
- The general formula for alkenes is CnH2n, where n is an integer (1, 2, 3 etc.). Which is the correct general formula for an alkane? [op-196]
- CnH2n + 1
- CnHn
- CnH2n - 2
- CnH2n + 2
Which of these statements is TRUE about crude oil and fractional distillation? [op-197]- crude oil consists of short and long chain hydrocarbons
- short chain hydrocarbons condense at the bottom of the column
- crude oil fractions are burned to crack them
- 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]
- crude oil consists of long chain hydrocarbons
- short chain hydrocarbons condense at the top of the column
- crude oil fractions are burned to crack them
- 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]
- crude oil consists of long chain hydrocarbons
- long chain hydrocarbons condense at the top of the column
- crude oil fractions are heated with a catalyst to crack them
- 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]
- crude oil consists of long chain hydrocarbons
- long chain hydrocarbons condense at the top of the column
- crude oil fractions are burned to crack them
- 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]
- hydrocarbons at the top of the column are flammable
- long chain hydrocarbons condense at the top of the column
- crude oil fractions are burned to crack them
- 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]
- hydrocarbons at the bottom of the column are flammable
- surplus long chain fractions can be cracked to make more petrol
- very short chain fractions are cracked to make alkenes for plastics
- 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]
- hydrocarbons at the bottom of the column are flammable
- very short chain fractions can be cracked to make more petrol
- surplus long chain fractions are cracked to make alkenes for plastics
- 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]
- hydrocarbons at the bottom of the column are flammable
- very short chain fractions can be cracked to make more petrol
- long chain fractions cannot be cracked to make alkenes for plastics
- hydrocarbons towards the bottom of the column have some limited uses
The diagram shows the formation of a polymer. Which is TRUE? [op-205]- in the monomer molecule the bonds shown between the carbon atoms are double covalent bonds
- the monomer is reactive because it has easily broken single bond
- the diagram shows a condensation polymerisation
- 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]
- in the monomer molecule the bonds shown between the carbon atoms are triple covalent bonds
- the monomer is reactive because it has an easily broken double bond
- the diagram shows a condensation polymerisation
- 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]
- in the monomer molecule the bonds shown between the atoms are all single covalent bonds
- the monomer is reactive because it has an easily broken single bond
- the diagram shows an addition polymerisation
- 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]
- in the monomer molecule the bonds shown between the atoms are all single covalent bonds
- the monomer is reactive because it has an easily broken single bond
- the diagram shows a condensation polymerisation
- when W, X, Y and Z are hydrogen the monomer is ethene and the polymer is poly(ethene)
