GCSE level chemistry quiz on naming & formulae of compounds practice exam questions recognising how to name a compound, how to work out a formula

What is the formula of ammonia? [cf-1]
1. NH₃
2. NH₂
3. NH₄
4. NH
What is the formula of carbon dioxide? [cf-2]
1. CO
2. CO₂
3. C₂O
4. C₂O₂
What is the formula of methane? [cf-3]
1. C₂H₆
2. CH
3. CH₄
4. CH₃
What is the formula of water? [cf-4]
1. OH
2. O₂H
3. H₂O₂
4. H₂O
What is the formula of hydrochloric acid? [cf-5]
1. HCl
2. HCl₂
3. HClO
4. HClO₂
What is the formula of sulfuric acid? [cf-6]
1. H₂SO₃
2. H₂SO₄
3. HSO₄
4. HSO₃
What is the formula of calcium oxide? [cf-7]
1. Ca₂O
2. CaO₂
3. CaO
4. CO
What is the formula of iron(III) oxide? [cf-8]
1. FeO₃
2. FeO
3. Fe₃O
4. Fe₂O₃
What is the formula of lead(II) oxide? [cf-9]
1. PbO
2. Pb₂O
3. Pb(OH)₂
4. PbOH
What is the formula of sodium hydroxide? [cf-10]
1. SOH
2. NaOH
3. S(OH)₂
4. Na(OH)₂
What is the formula of barium chloride? [cf-11]
1. BaCl
2. BaC
3. BaCl₂
4. Ba₂Cl
What is the formula of sodium chloride? [cf-12]
1. NaCl₂
2. SCl₂
3. SCl
4. NaCl
What is the formula of calcium carbonate? [cf-13]
1. CaCO₃
2. CaC₃
3. CaCO₂
4. Ca₂2CO₂
What is the formula of copper carbonate? [cf-14]
1. CCO₃
2. CuCO₃
3. CO₃
4. CuO₃
What is the formula of sodium carbonate? [cf-15]
1. NaCO₃
2. Na₃CO
3. Na₂CO₃
4. NaCO
What is the formula of potassium nitrate? [cf-16]
1. PNO₃
2. PNO₂
3. KNO₂
4. KNO₃
What is the formula of silver nitrate? [cf-17]
1. AgNO₃
2. AgNO₂
3. Ag₂NO₃
4. AgNO
What is the formula of barium sulfate? [cf-18]
1. BaSO₃
2. BaSO₄
3. Ba₂SO₄
4. Ba(SO₂)₂
What is the formula of copper(II) sulfate? [cf-19]
1. CuSO₃
2. Cu(SO₄)₂
3. CuSO₄
4. CuSO₂
What is the formula of sodium sulfate? [cf-20]
1. NaSO₄
2. NaSO₂
3. Na₂SO₃
4. Na₂SO₄
What is the formula of potassium bromide? [cf-21]
1. KBr
2. KBr₂
3. PBr₃
4. PBrO₃
What is the formula of potassium iodide? [cf-22]
1. KI₂
2. KI
3. PI₃
4. PI
What is the formula of potassium sulfate? [cf-23]
1. K₂S
2. KSO₃
3. K₂SO₄
4. KSO₃
What is the formula of potassium chloride? [cf-24]
1. K₂Cl
2. PCl₃
3. PCl
4. KCl
What is the formula of magnesium oxide? [cf-25]
1. MgO
2. MgOH
3. Mg₂O
4. Mg(OH)₂
What is the formula of magnesium carbonate? [cf-26]
1. MgCO₂
2. MgCO₃
3. Mg₂CO₃
4. Mg₂CO₃
What is the formula of magnesium sulfate? [cf-27]
1. MgSO₂
2. MgS₂
3. MgSO₄
4. MgS
What is the formula of calcium chloride? [cf-28]
1. CaCl
2. CCl₂
3. CCl
4. CaCl₂
What is the formula of calcium sulfate? [cf-29]
1. CaSO₄
2. Ca₂SO₄
3. CSO₄
4. CSO₂
What is the formula of zinc oxide? [cf-30]
1. ZnO₂
2. ZnO
3. ZnOH
4. Zn(OH)₂
What is the formula of copper(II) chloride? [cf-31]
1. CCl₂
2. CCl₄
3. CuCl₂
4. Cu₂Cl
What is the formula of zinc sulfate? [cf-32]
1. ZnS
2. ZnS₂
3. ZnSO₂
4. ZnSO₄
What is the formula of zinc chloride? [cf-33]
1. ZnCl₂
2. ZnCl
3. ZCl₂
4. ZCl
What is the formula of sulfur dioxide? [cf-34]
1. S₂O
2. SO₂
3. SO₃
4. SO₄
What is the formula of sulfur trioxide? [cf-35]
1. S₃O
2. SO₂
3. SO₃
4. SO₄
What is the formula of carbon monoxide? [cf-36]
1. CaO
2. CrO
3. Co
4. CO
What is the formula of hydrogen chloride? [cf-37]
1. HCl
2. HC
3. HCl₂
4. H₂Cl
Which is a correct name of the compound NH₃? [noc-1]
1. ammonia
2. ammonium
3. nitric acid
4. nitrate
Which is a correct name of the compound CO₂? [noc-2]
1. carbon oxide
2. carbon dioxide
3. copper oxide
4. copper dioxide
Which is a correct name of the compound CH₄? [noc-3]
1. ethane
2. propane
3. methane
4. tetrahedrane
Which is a correct name of the compound H₂O? [noc-4]
1. hydrogen peroxide
2. oxide
3. hydrogen dioxide
4. water
Which is a correct name of the compound HCl when dissolved in water? [noc-5]
1. hydrochloric acid
2. hydrogen chloride
3. hydrogen chlorine
4. chloride
What is the name of the compound H₂SO₄? [noc-6]
1. sulfurous acid
2. sulfuric acid
3. hydrogen sulfate
4. hydrogen sulfite
Which is a correct name of the compound CaO? [noc-7]
1. carbon oxide
2. calcium hydroxide
3. calcium oxide
4. carbon monoxide
Which is a correct name of the compound Fe₂O₃? [noc-8]
1. iron(III) hydroxide
2. iron trioxide
3. di-iron oxide
4. iron(III) oxide
Which is a correct name of the compound PbO? [noc-9]
1. lead oxide
2. lead hydroxide
3. phosphorus bioxide
4. phosphorus boron oxide
Which is a correct name of the compound NaOH? [noc-10]
1. sodium oxyhydride
2. sodium hydroxide
3. sodium hydrogen oxide
4. sodium oxide
Which is a correct name of the compound BaCl₂? [noc-11]
1. monobarium chloride
2. barium carbide
3. barium chloride
4. boron dichloride
Which is a correct name of the compound NaCl? [noc-12]
1. nitrogen chloride
2. nitrogen carbide
3. sodium carbide
4. sodium chloride
Which is a correct name of the compound CaCO₃? [noc-13]
1. calcium carbonate
2. calcium hydroxide
3. carbon carbonate
4. carbon trioxide
Which is a correct name of the compound CuCO₃? [noc-14]
1. copper carbon oxide
2. copper carbonate
3. copper trioxide
4. carbon copperate
Which is a correct name of the compound Na₂CO₃? [noc-15]
1. sodium carbon trioxide
2. soda carbonate
3. sodium carbonate
4. disoda carbonate
Which is a correct name of the compound KNO₃? [noc-16]
1. carbon nitrate
2. potassium nitrogen oxide
3. nitrogen potassiate
4. potassium nitrate
Which is a correct name of the compound AgNO₃? [noc-17]
1. silver nitrate
2. silver nitrogen trioxide
3. nitrogen silverate
4. argentous nitrate
Which is a correct name of the compound BaSO₄? [noc-18]
1. barium sulfite
2. barium sulfate
3. boron sulfur tetroxide
4. boron sulfate
Which is a correct name of the compound CuSO₄? [noc-19]
1. copper sulfite
2. carbon tetroxide
3. copper sulfate
4. curium sulfate
Which is a correct name of the compound Na₂SO₄? [noc-20]
1. sodium sulfite
2. dinitrogen sulfate
3. nickel sulfate
4. sodium sulfate
Which is a correct name of the compound of formula KBr? [noc-21]
1. potassium bromide
2. krypton bromide
3. potassium bromine
4. krypton bromine
Which is a correct name of the compound of formula KI? [noc-22]
1. krypton iodide
2. potassium iodide
3. krypton iodate
4. calcium iodate
Which is a correct name of the compound of formula K₂SO₄? [noc-23]
1. potassium sulfite
2. kallium sulfite
3. potassium sulfate
4. krypton sulfate
Which is a correct name of the compound of formula KCl? [noc-24]
1. potassium carbide
2. krypton chloride
3. krypton chlorate
4. potassium chloride
Which is a correct name of the compound of formula MgO? [noc-25]
1. magnesium oxide
2. magnesium hydroxide
3. magnesium dioxide
4. magnesium carbonate
Which is a correct name of the compound of formula MgCO₃? [noc-26]
1. magnesium trioxide
2. magnesium carbonate
3. magnesium hydroxide
4. magnesium hydrogencarbonate
Which is a correct name of the compound of formula MgSO₄? [noc-27]
1. magnesium sulfite
2. magnesium tetroxide
3. magnesium sulfate
4. magnesium hydrogensulfate
Which is a correct name of the compound of formula CaCl₂? [noc-28]
1. carbon dichloride
2. carbon dichloride
3. calcium hydroxide
4. calcium chloride
Which is a correct name of the compound of formula CaSO₄? [noc-29]
1. calcium sulfate
2. calcium sulfite
3. carbon sulfate
4. carbon sulfite
Which is a correct name of the compound of formula ZnO? [noc-30]
1. zirconium oxide
2. zinc oxide
3. zinc hydroxide
4. zirconium monoxide
Which is a correct name of the compound of formula CuCl₂? [noc-31]
1. carbon dichloride
2. copper carbide
3. copper chloride
4. carbon chloride
Which is a correct name of the compound of formula ZnSO₄? [noc-32]
1. zinc sulfur tetroxide
2. zirconium sulfate
3. zirconium teroxide
4. zinc sulfate
Which is a correct name of the compound of formula ZnCl₂? [noc-33]
1. zinc chloride
2. zinc carbide
3. zirconium chloride
4. zirconium carbide
Which is a correct name of the compound of formula SO₂? [noc-34]
1. sulfur oxide
2. sulfur dioxide
3. selenium dioxide
4. selenium oxide
Which is a correct name of the compound of formula SO₃? [noc-35]
1. selenium trioxide
2. sulfur oxide
3. sulfur trioxide
4. selenium oxide
What is the name of the compound of formula CO? [noc-36]
1. cobalt monoxide
2. carbon oxide
3. cobalt oxide
4. carbon monoxide
What is the name of the gaseous compound HCl? [noc-37]
1. hydrogen chloride
2. hydrochloric acid
3. hydrocarbon chloride
4. hydrogen chlorine iodide
What is the name of the compound NH₃? [noc-1]
What is the name of the compound CO₂? [noc-2]
What is the name of the compound CH₄? [noc-3]
What is the name of the compound H₂O? [noc-4]
What is the name of the compound HCl when dissolved in water? [noc-5]
What is the name of the compound H₂SO₄? [noc-6]
What is the name of the compound CaO? [noc-7]
What is the name of the compound Fe₂O₃? [noc-8]
What is the name of the compound PbO? [noc-9]
What is the name of the compound NaOH? [noc-10]
What is the name of the compound BaCl₂? [noc-11]
What is the name of the compound NaCl? [noc-12]
What is the name of the compound CaCO₃? [noc-13]
What is the name of the compound CuCO₃? [noc-14]
What is the name of the compound Na₂CO₃? [noc-15]
What is the name of the compound KNO₃? [noc-16]
What is the name of the compound AgNO₃? [noc-17]
What is the name of the compound BaSO₄? [noc-18]
What is the name of the compound CuSO₄? [noc-19]
What is the name of the compound Na₂SO₄? [noc-20]
What is the name of the compound of formula KBr? [noc-21]
What is the name of the compound of formula KI? [noc-22]
What is the name of the compound of formula K₂SO₄? [noc-23]
What is the name of the compound of formula KCl? [noc-24]
What is the name of the compound of formula MgO? [noc-25]
What is the name of the compound of formula MgCO₃? [noc-26]
What is the name of the compound of formula MgSO₄? [noc-27]
What is the name of the compound of formula CaCl₂? [noc-28]
What is the name of the compound of formula CaSO₄? [noc-29]
What is the name of the compound of formula ZnO? [noc-30]
What is the name of the compound of formula CuCl₂? [noc-31]
What is the name of the compound of formula ZnSO₄? [noc-32]
What is the name of the compound of formula ZnCl₂? [noc-33]
What is the name of the compound of formula SO₂? [noc-34]
What is the name of the compound of formula SO₃? [noc-35]
What is the name of the compound of formula CO? [noc-36]
What is the name of the gaseous compound HCl? [noc-37]
What is the name of the compound HCl, when dissolved in water? [noc-38]

GCSE level chemistry on the naming and formula of compounds