Fuels — Paper 1 · IGCSE Chemistry (9-1) 0971

10 Which gas is used as a fuel? A argon B hydrogen C nitrogen D oxygen

1 marks

Answer: B

This question in 0971/11 May/June 2018

35 What is not the correct use of the fraction named? name of fraction use A fuel oil making waxes B gas oil fuel in diesel engines C kerosene jet fuel D naphtha making chemicals

1 marks

Answer: A

This question in 0971/11 May/June 2018

38 Which substances can be obtained by cracking hydrocarbons? A ethanol and ethene B ethanol and hydrogen C ethene and hydrogen D ethene and poly(ethene)

1 marks

Answer: C

This question in 0971/11 May/June 2018

35 Which fuel could be gasoline? Is it obtained from petroleum? yes no Is it used as Is it used as fuel for cars? fuel for cars? yes no yes no A B C D

1 marks

Answer: A

This question in 0971/11 May/June 2019

35 Some fractions obtained from petroleum are listed. position collected fraction use in the fractionating column 1 gasoline waxes and polishes below refinery gas 2 bitumen making roads above kerosene 3 kerosene jet fuel below gasoline 4 refinery gas heating and cooking above gasoline Which rows are correct? A 1, 3 and 4 B 2, 3 and 4 C 3 and 4 only D 4 only

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2019

38 Which products are obtained by the cracking of an alkane? alkene hydrogen water v v v 0 Oo WwW > v v x v x v x v v

1 marks

Answer: B

This question in 0971/12 Oct/Nov 2019

10 Which element is not used as a fuel? A carbon B helium C hydrogen D uranium

1 marks

Answer: B

This question in 0971/11 May/June 2020

35 Which list shows the fractions obtained from distilling petroleum, in order of increasing boiling point? A bitumen → diesel oil → fuel oil → lubricating oil B diesel oil → gasoline → naphtha → kerosene C gasoline → naphtha → kerosene → diesel oil D kerosene → lubricating oil → naphtha → refinery gas

1 marks

Answer: C

This question in 0971/11 May/June 2020

37 Increasing the number of atoms in one molecule of a hydrocarbon increases the amount of energy released when it burns. What is the correct order? less energy more energy released released A ethene ethane methane B ethene methane ethane C methane ethane ethene D methane ethene ethane

1 marks

Answer: D

This question in 0971/11 May/June 2020

10 Which fuel does not rely on combustion to release energy? A gasoline B hydrogen C methane D uranium

1 marks

Answer: D

This question in 0971/12 May/June 2020

32 X is a colourless greenhouse gas. It is a waste product from digestion in animals. It is generally unreactive, but it can be burnt. What is X? A carbon dioxide B methane C nitrogen D sulfur dioxide

1 marks

Answer: B

This question in 0971/12 May/June 2020

35 Which list shows the fractions obtained from distilling petroleum, in order of increasing boiling point? A bitumen → diesel oil → fuel oil → lubricating oil B diesel oil → gasoline → naphtha → kerosene C gasoline → naphtha → kerosene → diesel oil D kerosene → lubricating oil → naphtha → refinery gas

1 marks

Answer: C

This question in 0971/12 May/June 2020

37 Increasing the number of atoms in one molecule of a hydrocarbon increases the amount of energy released when it burns. What is the correct order? less energy more energy released released A ethene ethane methane B ethene methane ethane C methane ethane ethene D methane ethene ethane

1 marks

Answer: D

This question in 0971/12 May/June 2020

16 Which substance does not require oxygen in order to produce energy? A coal B hydrogen C natural gas D 235U

1 marks

Answer: D

This question in 0971/12 Oct/Nov 2020

36 Petroleum is separated into fractions by fractional distillation. Separation occurs in a fractionating column. Some properties of three of these fractions are shown. number of boiling point fraction carbon atoms in range / C the molecules 1 5 –10 2 320–350 16–24 3 120–210 Which statement is correct? A Fraction 1 has a higher boiling point range than fraction 2. B Fraction 2 is removed from a higher point in the fractionating column than fraction 1. C Molecules in fraction 3 have shorter chains than those in fraction 2. D None of the fractions are liquid at room temperature.

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2020

31 Which row describes the uses of sulfur and sulfur dioxide? sulfur sulfur dioxide A extraction of aluminium food preservative B extraction of aluminium manufacture of cement C manufacture of sulfuric acid food preservative D manufacture of sulfuric acid manufacture of cement

1 marks

Answer: C

This question in 0971/11 May/June 2021

39 Which statement about petroleum fractions is correct? A All petroleum fractions are used as fuels. B Gas oil is used to make bottled gas for heating. C Hydrocarbons in diesel have higher boiling points than hydrocarbons in gasoline. D Molecules in kerosene are larger than molecules in fuel oil.

1 marks

Answer: C

This question in 0971/11 May/June 2021

33 A chemical equation for the complete combustion of methane is shown. 2CH4 + zO2  2CO2 + 4H2O What is the value of z? A 2 B 3 C 4 D 6

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2021

34 Fuel X produces carbon dioxide and water when it is burned in air. So does fuel Y. What could X and Y be? X Y A C H2 B C C8H18 C CH4 H2 D CH4 C8H18

1 marks

Answer: D

This question in 0971/12 Oct/Nov 2021

35 Which substance is not a fossil fuel? A ethanol B gasoline C kerosene D methane

1 marks

Answer: A

This question in 0971/12 Oct/Nov 2021

13 The equation for the reaction when hydrogen is used as a fuel is shown. 2H2 + O2  2H2O Which statement about this reaction is correct? A Energy is given out so the temperature of the surroundings decreases. B Energy is taken in so the temperature of the surroundings increases. C The reaction is endothermic so the temperature of the surroundings decreases. D The reaction is exothermic so the temperature of the surroundings increases.

1 marks

Answer: D

This question in 0971/11 May/June 2022

14 Which fuels release carbon dioxide when burned? 1 gasoline 2 hydrogen 3 methane A 1 and 2 B 1 and 3 C 2 and 3 D 3 only

1 marks

Answer: B

This question in 0971/11 May/June 2022

33 Petroleum is separated into useful fractions by fractional distillation. Which fraction is used as a fuel for jet aeroplanes? A fuel oil B gasoline C naphtha D kerosene / paraffin

1 marks

Answer: D

This question in 0971/12 May/June 2022

12 Some properties of four fuels are shown. Which fuel is a gas at room temperature and makes two products when it burns in a plentiful supply of air? melting point boiling point fuel formula / C / C A hydrogen H2 –259 –253 B methane CH4 –182 –164 C octane C8H18 –57 126 D wax C31H64 60 400

1 marks

Answer: B

This question in 0971/12 Oct/Nov 2022

35 Fuel oil and naphtha are two fractions obtained from petroleum. What are the major uses of these fractions? fuel oil naphtha A jet fuel making chemicals B jet fuel making roads C ship fuel making chemicals D ship fuel making roads

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2022

33 The fractional distillation of petroleum is shown. Which fraction contains hydrocarbons with the longest chain length? fuel gas A B C D petroleum bitumen

1 marks

Answer: D

This question in 0971/11 May/June 2023

11 5 g of four different fuels are set alight and placed under a beaker containing 50 cm3 of water. The temperature of the water is taken at the start and after five minutes. Which fuel releases the most energy? temperature temperature at start after five minutes / °C / °C A 15 23 B 21 31 C 28 47 D 30 48

1 marks

Answer: C

This question in 0971/12 May/June 2023

29 A wax candle is made from a mixture of hydrocarbons. The candle is lit and placed in a gas jar along with a strip of cobalt(II) chloride test paper as shown. cobalt(II) chloride paper gas jar combustion products wax candle After a short time, the oxygen in the jar is used up and the candle flame goes out. Which substance does the cobalt(II) chloride paper identify? A carbon dioxide B carbon monoxide C sulfur dioxide D water

1 marks

Answer: D

This question in 0971/12 May/June 2023

35 Compound Z has the molecular formula C2H6O. Which statement about compound Z is correct? A Z is unsaturated. B Z is a carboxylic acid. C Z is formed by the reaction of ethane with steam. D Z is used as a fuel.

1 marks

Answer: D

This question in 0971/12 May/June 2023

39 A fractionating column is used to separate the hydrocarbon fractions in petroleum by fractional distillation. Which row describes the properties of the fractions that condense at the top of the fractionating column? size of molecule boiling point A large high B large low C small high D small low

1 marks

Answer: D

This question in 0971/12 May/June 2023

35 Poly(ethene) is formed from petroleum using three separate processes. In which order are the processes used? A cracking → fractional distillation → polymerisation B cracking → polymerisation → fractional distillation C fractional distillation → cracking → polymerisation D fractional distillation → polymerisation → cracking

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2023

36 Gas oil and naphtha are two fractions obtained from petroleum. What are uses of gas oil and naphtha? gas oil naphtha A jet fuel making chemicals B jet fuel making roads C diesel engine fuel making chemicals D diesel engine fuel making roads

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2023

34 Which of the statements about propene are correct? 1 Propene contains only single bonds. 2 Propene decolourises aqueous bromine. 3 Propene is obtained by cracking large alkanes. 4 Propene is a hydrocarbon. A 1, 3 and 4 B 1 only C 2, 3 and 4 D 2 and 4 only

1 marks

Answer: C

This question in 0971/12 May/June 2024

35 Petroleum is a mixture. Which method is used to separate petroleum into its components? A chromatography B cracking C filtration D fractional distillation

1 marks

Answer: D

This question in 0971/12 May/June 2024

35 Which list shows the fractions obtained from the fractional distillation of petroleum, in order of increasing boiling point? A bitumen  diesel oil  fuel oil  lubricating oil B diesel oil  gasoline  naphtha  kerosene C gasoline  naphtha  kerosene  diesel oil D kerosene  lubricating oil  naphtha  refinery gas

1 marks

Answer: C

This question in 0971/11 May/June 2025

36 Three statements about cracking of larger alkane molecules are listed. 1 Cracking produces petrol for cars. 2 Cracking only produces short-chain alkenes. 3 Cracking produces alkenes used to make polymers. Which statements are correct? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: C

This question in 0971/11 May/June 2025

33 Which fuel could be gasoline? Is it obtained from petroleum? yes no Is it used as Is it used as fuel for cars? fuel for cars? yes no yes no A B C D

1 marks

Answer: A

This question in 0971/12 May/June 2025

10 Which equation represents the complete combustion of butane, C4H10? A 2C4H10 + 5O2  8C + 10H2O B 2C4H10 + 9O2  8CO + 10H2O C 2C4H10 + 13O2  8CO2 + 10H2O D C4H10 + 4O2  4CO2 + 5H2

1 marks

Answer: C

This question in 0971/12 Oct/Nov 2025

33 Gas X is a waste gas from digestion in animals. Gas Y is formed when gas X is burned with an insufficient amount of oxygen. Gas Z is formed when gas X is burned with an excess of oxygen. What are X, Y and Z? X Y Z A carbon dioxide methane carbon monoxide B carbon monoxide methane carbon dioxide C methane carbon dioxide carbon monoxide D methane carbon monoxide carbon dioxide

1 marks

Answer: D

This question in 0971/12 Oct/Nov 2025

37 Petroleum is a mixture of compounds. Which elements are present in all of these compounds? 1 carbon 2 hydrogen 3 oxygen A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: B

This question in 0971/12 Oct/Nov 2025

38 Which statement about ethanol explains why it is used as a fuel? A It is a colourless liquid. B It has a low density. C It forms carbon dioxide when burned. D It releases energy when burned.

1 marks

Answer: D

This question in 0971/12 Oct/Nov 2025