Alkanes — Paper 2 · IGCSE Physical Science 0652

19 When decane is heated over a catalyst, it breaks down to make octane and ethene. Which name is given to this process? A cracking B distilling C polymerising D reducing

1 marks

Answer: A

This question in 0652/21 Oct/Nov 2017

19 When decane is heated over a catalyst, it breaks down to make octane and ethene. Which name is given to this process? A cracking B distilling C polymerising D reducing

1 marks

Answer: A

This question in 0652/22 Oct/Nov 2017

18 Long-chain alkanes are broken down into shorter-chain compounds and an element. Which statement about the process is correct? A Alkenes are formed during the reaction. B The element is nitrogen. C The process is polymerisation. D The reaction occurs at room temperature.

1 marks

Answer: A

This question in 0652/21 Oct/Nov 2018

18 Long-chain alkanes are broken down into shorter-chain compounds and an element. Which statement about the process is correct? A Alkenes are formed during the reaction. B The element is nitrogen. C The process is polymerisation. D The reaction occurs at room temperature.

1 marks

Answer: A

This question in 0652/22 Oct/Nov 2018

18 Which statements about the alkanes are correct? 1 They are generally unreactive except in terms of burning. 2 They burn in air to produce carbon dioxide and water. 3 They contain carbon to carbon double bonds. 4 They decolourise bromine water. A 1, 2 and 3 only B 1 and 2 only C 1, 3 and 4 only D 2 and 4 only

1 marks

Answer: B

This question in 0652/21 Oct/Nov 2019

19 When hexane is heated in the presence of a catalyst, it decomposes to give ethane, hydrogen and another hydrocarbon Y. The equation for the reaction is shown. C6H14 → C2H4 + Y + H2 Which type of hydrocarbon is Y and what is its formula? type of formula hydrocarbon A alkane C4H8 B alkane C4H10 C alkene C4H8 D alkene C4H10

1 marks

Answer: C

This question in 0652/21 Oct/Nov 2019

18 Which statements about the alkanes are correct? 1 They are generally unreactive except in terms of burning. 2 They burn in air to produce carbon dioxide and water. 3 They contain carbon to carbon double bonds. 4 They decolourise bromine water. A 1, 2 and 3 only B 1 and 2 only C 1, 3 and 4 only D 2 and 4 only

1 marks

Answer: B

This question in 0652/22 Oct/Nov 2019

19 When hexane is heated in the presence of a catalyst, it decomposes to give ethane, hydrogen and another hydrocarbon Y. The equation for the reaction is shown. C6H14 → C2H4 + Y + H2 Which type of hydrocarbon is Y and what is its formula? type of formula hydrocarbon A alkane C4H8 B alkane C4H10 C alkene C4H8 D alkene C4H10

1 marks

Answer: C

This question in 0652/22 Oct/Nov 2019

19 One member of the alkane homologous series is butane which is used as a fuel. What are the products of combustion when butane is burned in excess air? A carbon and water B carbon dioxide and hydrogen C carbon dioxide and water D carbon monoxide and water

1 marks

Answer: C

This question in 0652/21 Oct/Nov 2020

19 One member of the alkane homologous series is butane which is used as a fuel. What are the products of combustion when butane is burned in excess air? A carbon and water B carbon dioxide and hydrogen C carbon dioxide and water D carbon monoxide and water

1 marks

Answer: C

This question in 0652/22 Oct/Nov 2020

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

19 The fractional distillation of petroleum is shown. From which position is methane obtained? A B C petroleum heater at 400 °C D

1 marks

Answer: A

This question in 0652/21 Oct/Nov 2021

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

18 What are the products of the complete combustion of methane? A carbon monoxide and hydrogen B carbon dioxide, carbon monoxide and water C carbon dioxide and water only D carbon monoxide and water only

1 marks

Answer: C

This question in 0652/21 Oct/Nov 2023

18 What are the products of the complete combustion of methane? A carbon monoxide and hydrogen B carbon dioxide, carbon monoxide and water C carbon dioxide and water only D carbon monoxide and water only

1 marks

Answer: C

This question in 0652/22 Oct/Nov 2023

19 One member of the alkane homologous series is butane which is used as a fuel. What are the products of combustion when butane is burned in excess air? A carbon and water B carbon dioxide and hydrogen C carbon dioxide and water D carbon monoxide and water

1 marks

Answer: C

This question in 0652/21 Oct/Nov 2024

20 The formulae of four compounds are shown. 1 C2H6 2 C4H8 3 C7H14 4 C10H22 Which compounds will decolourise bromine water? A 1 and 2 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: C

This question in 0652/21 Oct/Nov 2024