Cambridge IGCSE Chemistry practice

Paper 3 structured question: Alkenes

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Paper

Marks

Topic

Alkenes

Exam-style question

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Paper 3Theory (Core)3 marks

Cracking is an important process in the production of fuels.

Description

Cracking allows for the conversion of larger hydrocarbons into more useful smaller molecules.

a
Describe the conditions required for the cracking process.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 3Theory (Core)1 marks

Description

Cracking involves breaking down larger alkane molecules into smaller alkenes and hydrogen gas using high temperatures and a catalyst.

a
State the products of the cracking process.
Your answer
Aim for approximately 1 distinct marking point.
[1]