Fuels — Paper 1 · IGCSE Sciences - Co-ordinated (9-1) 0973

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

1 marks

Answer: C

This question in 0973/11 May/June 2019

31 Which source of energy is renewable? A coal B geothermal C natural gas D nuclear

1 marks

Answer: B

This question in 0973/12 May/June 2020

23 The apparatus used to investigate the combustion of ethanol is shown. The products of combustion are passed over anhydrous cobalt(II) chloride. to suction pump anhydrous cobalt(II) chloride spirit burner ethanol How does the colour of the cobalt(II) chloride change during the investigation? A blue to pink B blue to white C pink to blue D white to blue

1 marks

Answer: A

This question in 0973/11 May/June 2021

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

1 marks

Answer: D

This question in 0973/11 May/June 2021

24 Other than hydrogen and oxygen, which substance provides only one of the essential elements for plant growth? A K3PO4 B KNO3 C (NH4)3PO4 D NH4NO3

1 marks

Answer: D

This question in 0973/12 May/June 2021

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 0973/11 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 0973/12 May/June 2023

26 Which statement about petroleum is correct? A It contains mostly alkene molecules. B It is a mixture of hydrocarbons. C It is separated into fractions by cracking. D Its main constituent is methane.

1 marks

Answer: B

This question in 0973/11 Oct/Nov 2023

26 Which statement about manufacturing processes is correct? A Limestone is manufactured from calcium oxide. B Limestone is manufactured from acidic waste products. C Ethene is manufactured by addition polymerisation. D Sulfuric acid is manufactured from sulfur.

1 marks

Answer: D

This question in 0973/11 May/June 2024

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

1 marks

Answer: D

This question in 0973/11 May/June 2025

24 Which property allows petroleum to be separated by fractional distillation? A boiling point B colour C density D melting point

1 marks

Answer: A

This question in 0973/12 May/June 2025

24 Which air pollutants are produced by the combustion of fossil fuels in car engines? A carbon monoxide, oxides of nitrogen and sulfur dioxide B carbon monoxide and sulfur dioxide only C carbon monoxide and oxides of nitrogen only D oxides of nitrogen and sulfur dioxide only

1 marks

Answer: A

This question in 0973/11 Oct/Nov 2025

25 Which process is used to obtain gasoline from petroleum? A crystallisation B chromatography C filtration D fractional distillation

1 marks

Answer: D

This question in 0973/11 Oct/Nov 2025