Questions as text
Q1 · The formula of a gallium ion is Ga3+ 0652/21 Oct/Nov 2017
5 The formula of a gallium ion is Ga3+. The formula of a sulfate ion is SO4 2–. What is the formula of gallium sulfate? A GaSO4 B Ga2SO3 C Ga2(SO4)3 D Ga3(SO4)2
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2017
Q2 · Chromium(III) oxide reacts with dilute nitric acid to give chromium(III) nitrate and water 0652/21 Oct/Nov 2017
6 Chromium(III) oxide reacts with dilute nitric acid to give chromium(III) nitrate and water. Cr2O3 + xHNO3 → yCr(NO3)3 + zH2O Which values of x, y and z balance the equation? x y z A 3 1 3 B 3 2 6 C 6 2 3 D 6 2 6
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2017
Q3 · Which compound has the largest relative molecular mass, Mr? 0652/21 Oct/Nov 2017
7 Which compound has the largest relative molecular mass, Mr? A CO2 B NO2 C SiO2 D SO2
1 marks
Answer: D
This question in 0652/21 Oct/Nov 2017
Q4 · The formula of a gallium ion is Ga3+ 0652/22 Oct/Nov 2017
5 The formula of a gallium ion is Ga3+. The formula of a sulfate ion is SO4 2–. What is the formula of gallium sulfate? A GaSO4 B Ga2SO3 C Ga2(SO4)3 D Ga3(SO4)2
1 marks
Answer: C
This question in 0652/22 Oct/Nov 2017
Q5 · Chromium(III) oxide reacts with dilute nitric acid to give chromium(III) nitrate and water 0652/22 Oct/Nov 2017
6 Chromium(III) oxide reacts with dilute nitric acid to give chromium(III) nitrate and water. Cr2O3 + xHNO3 → yCr(NO3)3 + zH2O Which values of x, y and z balance the equation? x y z A 3 1 3 B 3 2 6 C 6 2 3 D 6 2 6
1 marks
Answer: C
This question in 0652/22 Oct/Nov 2017
Q6 · Which compound has the largest relative molecular mass, Mr? 0652/22 Oct/Nov 2017
7 Which compound has the largest relative molecular mass, Mr? A CO2 B NO2 C SiO2 D SO2
1 marks
Answer: D
This question in 0652/22 Oct/Nov 2017
Q7 · An ionic compound has the formula Ga2S3 0652/21 Oct/Nov 2018
6 An ionic compound has the formula Ga2S3. What are the formulae of the ions? A Ga2– and S3+ B Ga3– and S2+ C Ga2+ and S2– D Ga3+ and S2–
1 marks
Answer: D
This question in 0652/21 Oct/Nov 2018
Q8 · Butane gas is used as the fuel in camping stoves 0652/21 Oct/Nov 2018
7 Butane gas is used as the fuel in camping stoves. Butane burns in air to produce carbon dioxide and water. The equation is shown. 2C4H10 + 13O2 → 8CO2 + 10H2O What are the volumes of oxygen used and carbon dioxide produced by burning 40 cm3 of butane? oxygen carbon dioxide / cm3 / cm3 A 40 80 B 40 160 C 260 160 D 260 240
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2018
Q9 · An ionic compound has the formula Ga2S3 0652/22 Oct/Nov 2018
6 An ionic compound has the formula Ga2S3. What are the formulae of the ions? A Ga2– and S3+ B Ga3– and S2+ C Ga2+ and S2– D Ga3+ and S2–
1 marks
Answer: D
This question in 0652/22 Oct/Nov 2018
Q10 · Butane gas is used as the fuel in camping stoves 0652/22 Oct/Nov 2018
7 Butane gas is used as the fuel in camping stoves. Butane burns in air to produce carbon dioxide and water. The equation is shown. 2C4H10 + 13O2 → 8CO2 + 10H2O What are the volumes of oxygen used and carbon dioxide produced by burning 40 cm3 of butane? oxygen carbon dioxide / cm3 / cm3 A 40 80 B 40 160 C 260 160 D 260 240
1 marks
Answer: C
This question in 0652/22 Oct/Nov 2018
Q11 · Chromium(III) sulfate is made of chromium(III) ions, Cr3+, and sulfate ions, SO4 2– 0652/21 Oct/Nov 2019
5 Chromium(III) sulfate is made of chromium(III) ions, Cr3+, and sulfate ions, SO4 2–. What is the formula of chromium(III) sulfate? A CrSO4 B Cr2(SO4)3 C Cr3SO4 D Cr3(SO4)2
1 marks
Answer: B
This question in 0652/21 Oct/Nov 2019
Q12 · What is the relative formula mass, Mr, of aluminium oxide Al 2O3? 0652/21 Oct/Nov 2019
6 What is the relative formula mass, Mr, of aluminium oxide Al 2O3? A 43 B 50 C 102 D 113
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2019
Q13 · Chromium(III) sulfate is made of chromium(III) ions, Cr3+, and sulfate ions, SO4 2– 0652/22 Oct/Nov 2019
5 Chromium(III) sulfate is made of chromium(III) ions, Cr3+, and sulfate ions, SO4 2–. What is the formula of chromium(III) sulfate? A CrSO4 B Cr2(SO4)3 C Cr3SO4 D Cr3(SO4)2
1 marks
Answer: B
This question in 0652/22 Oct/Nov 2019
Q14 · What is the relative formula mass, Mr, of aluminium oxide Al 2O3? 0652/22 Oct/Nov 2019
6 What is the relative formula mass, Mr, of aluminium oxide Al 2O3? A 43 B 50 C 102 D 113
1 marks
Answer: C
This question in 0652/22 Oct/Nov 2019
Q15 · The formula of aluminium sulfate is Al 2(SO4)3 0652/21 Oct/Nov 2020
7 The formula of aluminium sulfate is Al 2(SO4)3. Which row shows the number of atoms of each element in aluminium sulfate? Al S O A 2 1 4 B 2 1 12 C 2 3 4 D 2 3 12
1 marks
Answer: D
This question in 0652/21 Oct/Nov 2020
Q16 · Ethyl ethanoate has the formula CH3CO2C2H5 0652/21 Oct/Nov 2020
8 Ethyl ethanoate has the formula CH3CO2C2H5. What is the relative molecular mass Mr of this compound? A 48 B 72 C 88 D 124
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2020
Q17 · The formula of aluminium sulfate is Al 2(SO4)3 0652/22 Oct/Nov 2020
7 The formula of aluminium sulfate is Al 2(SO4)3. Which row shows the number of atoms of each element in aluminium sulfate? Al S O A 2 1 4 B 2 1 12 C 2 3 4 D 2 3 12
1 marks
Answer: D
This question in 0652/22 Oct/Nov 2020
Q18 · Ethyl ethanoate has the formula CH3CO2C2H5 0652/22 Oct/Nov 2020
8 Ethyl ethanoate has the formula CH3CO2C2H5. What is the relative molecular mass Mr of this compound? A 48 B 72 C 88 D 124
1 marks
Answer: C
This question in 0652/22 Oct/Nov 2020
Q19 · Butane gas is used as the fuel in camping stoves 0652/21 Oct/Nov 2021
7 Butane gas is used as the fuel in camping stoves. Butane burns in air to produce carbon dioxide and water. The equation is shown. 2C4H10 + 13O2 8CO2 + 10H2O What are the volumes of oxygen used and carbon dioxide produced by burning 40 cm3 of butane? oxygen carbon dioxide / cm3 / cm3 A 40 80 B 40 160 C 260 160 D 260 240
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2021
Q20 · Pentane, C5H12, burns in oxygen 0652/21 Oct/Nov 2022
6 Pentane, C5H12, burns in oxygen. C5H12 + xO2 → 5CO2 + yH2O Which values of x and y balance the equation? x y A 4 6 B 4 12 C 8 6 D 8 12
1 marks
Answer: C
This question in 0652/21 Oct/Nov 2022
Q21 · Sulfuric acid is titrated with 25.0 cm3 of 0.05 mol / dm3 aqueous sodium hydroxide 0652/21 Oct/Nov 2022
7 Sulfuric acid is titrated with 25.0 cm3 of 0.05 mol / dm3 aqueous sodium hydroxide. The equation for this reaction is shown. H2SO4 + 2NaOH → Na2SO4 + 2H2O Which volume of 0.1 mol / dm3 sulfuric acid is required to neutralise this volume of aqueous sodium hydroxide? A 6.25 cm3 B 12.5 cm3 C 25.0 cm3 D 100.0 cm3
1 marks
Answer: A
This question in 0652/21 Oct/Nov 2022
Q22 · Pentane, C5H12, burns in oxygen 0652/22 Oct/Nov 2022
6 Pentane, C5H12, burns in oxygen. C5H12 + xO2 → 5CO2 + yH2O Which values of x and y balance the equation? x y A 4 6 B 4 12 C 8 6 D 8 12
1 marks
Answer: C
This question in 0652/22 Oct/Nov 2022
Q23 · Sulfuric acid is titrated with 25.0 cm3 of 0.05 mol / dm3 aqueous sodium hydroxide 0652/22 Oct/Nov 2022
7 Sulfuric acid is titrated with 25.0 cm3 of 0.05 mol / dm3 aqueous sodium hydroxide. The equation for this reaction is shown. H2SO4 + 2NaOH → Na2SO4 + 2H2O Which volume of 0.1 mol / dm3 sulfuric acid is required to neutralise this volume of aqueous sodium hydroxide? A 6.25 cm3 B 12.5 cm3 C 25.0 cm3 D 100.0 cm3
1 marks
Answer: A
This question in 0652/22 Oct/Nov 2022
Q24 · Ammonia reacts with oxygen to produce substance X and water 0652/21 Oct/Nov 2023
7 Ammonia reacts with oxygen to produce substance X and water. An incomplete equation is shown. 4NH3 + 5O2 → X + 6H2O What is the formula of X? A N2 B NO C NO2 D N2O
1 marks
Answer: B
This question in 0652/21 Oct/Nov 2023
Q25 · The formulae of three substances are shown 0652/21 Oct/Nov 2023
8 The formulae of three substances are shown. 1 NO2 2 C2H5OH 3 C3H8 Which substances have a relative molecular mass of 46? A 1, 2 and 3 B 1 and 2 only C 1 only D 2 only
1 marks
Answer: B
This question in 0652/21 Oct/Nov 2023
Q26 · Ammonia reacts with oxygen to produce substance X and water 0652/22 Oct/Nov 2023
7 Ammonia reacts with oxygen to produce substance X and water. An incomplete equation is shown. 4NH3 + 5O2 X + 6H2O What is the formula of X? A N2 B NO C NO2 D N2O
1 marks
Answer: B
This question in 0652/22 Oct/Nov 2023
Q27 · The formulae of three substances are shown 0652/22 Oct/Nov 2023
8 The formulae of three substances are shown. 1 NO2 2 C2H5OH 3 C3H8 Which substances have a relative molecular mass of 46? A 1, 2 and 3 B 1 and 2 only C 1 only D 2 only
1 marks
Answer: B
This question in 0652/22 Oct/Nov 2023
Q28 · In an experiment, the mass of a sample of solid calcium carbonate is measured and added… 0652/21 Oct/Nov 2024
2 In an experiment, the mass of a sample of solid calcium carbonate is measured and added to a conical flask containing exactly 25.0 cm3 of dilute hydrochloric acid. Which additional pieces of apparatus are required for this experiment? 1 2 3 4 00.00 g A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4
1 marks
Answer: A
This question in 0652/21 Oct/Nov 2024
Q29 · The equation for the decomposition of hydrogen peroxide, H2O2, is shown 0652/21 Oct/Nov 2024
8 The equation for the decomposition of hydrogen peroxide, H2O2, is shown. 2H2O2 2H2O + O2 Which volume of oxygen at r.t.p. is produced when 20.0 cm3 of 0.05 mol / dm3 of H2O2 decomposes? A 0.012 dm3 B 0.016 dm3 C 0.024 dm3 D 0.032 dm3
1 marks
Answer: A
This question in 0652/21 Oct/Nov 2024
1 / 6
2 / 6
3 / 6
4 / 6
5 / 6
6 / 6