Cambridge IGCSE Chemistry practice

Paper 3 structured question: Alcohols

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Paper

Marks

Topic

Alcohols

Exam-style question

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Paper 3Theory (Core)3 marks

Ethanol can be produced through two different methods: fermentation and catalytic reaction.

Description

Ethanol can be produced by fermentation of sugar solution using yeast or by catalytic reaction of ethene with steam.

a
Explain how ethanol is produced through fermentation.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 3Theory (Core)1 marks

Description

Ethanol can be produced by fermentation of sugar solution using yeast or by catalytic reaction of ethene with steam.

a
State the temperature range for fermentation of sugar solution.
Your answer
Aim for approximately 1 distinct marking point.
[1]