Fuels — Paper 2 · IGCSE Sciences - Co-ordinated (Double) 0654

26 Which statement about the products of the fractional distillation of petroleum is not correct? A Fractions obtained from high up the fractional distillation column contain small molecules. B Fractions obtained from low down the fractional distillation column have low boiling points. C Large molecules have large intermolecular attractive forces. D Refinery gas is used for cooking and heating.

1 marks

Answer: B

This question in 0654/23 May/June 2017

19 Methane is used as a fuel. Which row describes the temperature change and the type of reaction when methane burns? temperature type of change reaction A decrease endothermic B decrease exothermic C increase endothermic D increase exothermic

1 marks

Answer: D

This question in 0654/21 Oct/Nov 2018

26 Ethene is manufactured from alkanes. Ethene is used to manufacture ethanol. Which statement about these processes is not correct? A Ethanol is made by reacting ethene with oxygen. B Ethene is converted to ethanol by an addition reaction. C Ethene is made by cracking. D The manufacture of ethanol uses a catalyst.

1 marks

Answer: A

This question in 0654/23 Oct/Nov 2018

26 Fractional distillation separates petroleum into useful fractions. Fraction L has a lower boiling point than fraction H. Which row describes the size of molecules and the attractive forces between molecules in fractions L and H? attractive forces size of molecules between molecules A L larger than H L greater than H B L larger than H L less than H C L smaller than H L less than H D L smaller than H L greater than H

1 marks

Answer: C

This question in 0654/22 May/June 2019

26 What are the uses of the fractions obtained from petroleum? gas oil gasoline refinery gas A cooking petrol fuel diesel fuel B diesel fuel heating petrol fuel C diesel fuel petrol fuel cooking D petrol fuel diesel fuel heating

1 marks

Answer: C

This question in 0654/23 May/June 2020

27 Ethene is produced when decane, a large hydrocarbon, is heated with a catalyst. What is the name of this process? A combustion B cracking C displacement D neutralisation

1 marks

Answer: B

This question in 0654/23 May/June 2020

24 In the Haber process, ammonia is manufactured using hydrogen and nitrogen. What is the source of hydrogen for this process? A the electrolysis of dilute sulfuric acid B the reaction of hydrochloric acid with zinc C the reaction of steam with magnesium D the reaction of steam with methane

1 marks

Answer: D

This question in 0654/22 Oct/Nov 2020

26 Naphtha is obtained from petroleum. What is a use for naphtha? A cooking B making chemicals C heating D making roads

1 marks

Answer: B

This question in 0654/22 Feb/March 2021

24 Ammonia is manufactured by the Haber process from nitrogen and hydrogen. What is the source of hydrogen for this process? A the electrolysis of dilute sulfuric acid B the fractional distillation of liquid air C the reaction of an acid with a reactive metal D the reaction of steam with natural gas

1 marks

Answer: D

This question in 0654/22 Oct/Nov 2021

23 Which row describes how hydrogen and nitrogen are obtained for use in the Haber process? hydrogen nitrogen A electrolysis of sulfuric acid catalytic reduction of nitrogen oxides B electrolysis of sulfuric acid distillation of air C reaction of methane and steam catalytic reduction of nitrogen oxides D reaction of methane and steam distillation of air

1 marks

Answer: D

This question in 0654/21 May/June 2023

26 Petroleum is separated into fractions by fractional distillation. Information about uses of some fractions and positions in the fractionating column where they are collected is shown. fraction use position 1 gasoline making roads below refinery gas 2 bitumen petrol for car engines bottom of column 3 naphtha making chemicals below gasoline 4 refinery gas heating and cooking top of column Which rows are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

1 marks

Answer: D

This question in 0654/21 May/June 2023

26 Naphtha is obtained by the fractional distillation of petroleum. Which statements about naphtha are correct? 1 It burns to form carbon dioxide and water. 2 It is a mixture of hydrocarbons. 3 It is present in bottled gas. 4 The main component of naphtha is methane. A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

1 marks

Answer: A

This question in 0654/22 May/June 2023

23 The Haber process is used to make ammonia. Which statement about the Haber process is not correct? A A vanadium(V) oxide catalyst is used. B The nitrogen used is obtained from the air. C The pressure used is 200 atmospheres. D The temperature used is 450 C.

1 marks

Answer: A

This question in 0654/23 May/June 2023

26 Which fraction obtained from petroleum is used as a feedstock for making chemicals? A bitumen B gasoline C naphtha D refinery gas

1 marks

Answer: C

This question in 0654/23 May/June 2023

26 What is the main constituent of clean air and of natural gas? clean air natural gas A nitrogen ethane B nitrogen methane C oxygen ethane D oxygen methane

1 marks

Answer: B

This question in 0654/23 May/June 2024

26 Petroleum is separated into useful fractions by fractional distillation. Which row shows the uses of the named fractions? gasoline naphtha bitumen A fuel for cars feedstock for fuel for cooking making chemicals B fuel for cooking fuel for heating fuel for diesel engines C feedstock for fuel for heating road surfaces making chemicals D fuel for cars feedstock for road surfaces making chemicals

1 marks

Answer: D

This question in 0654/22 Oct/Nov 2024

25 What is the main constituent of natural gas? A ethane B ethene C methane D nitrogen

1 marks

Answer: C

This question in 0654/22 Feb/March 2025

26 Large alkane molecules are cracked to form smaller molecules. Which equations represent cracking reactions? 1 C18H38  2C6H14 + C6H12 2 C18H38  H2 + 3C6H12 3 C15H32  C5H10 + 2C5H12 4 C15H32  C6H14 + C5H10 + C4H8 A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: D

This question in 0654/22 May/June 2025

27 Three processes are listed. 1 cracking of hydrocarbons 2 combustion of methane 3 reaction of magnesium with steam Which processes produce hydrogen? 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 0654/23 May/June 2025

23 Gasoline and diesel oil are fractions obtained by the fractional distillation of petroleum. Which row about gasoline and diesel oil is correct? temperature at which size of molecules the fraction is collected in the fraction A gasoline higher than diesel oil gasoline larger than diesel oil B gasoline higher than diesel oil gasoline smaller than diesel oil C diesel oil higher than gasoline diesel oil larger than gasoline D diesel oil higher than gasoline diesel oil smaller than gasoline

1 marks

Answer: C

This question in 0654/21 Oct/Nov 2025