Cambridge IGCSE Combined Science practice

Paper 3 structured question: Terminology

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Terminology

Exam-style question

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Paper 3Theory (Core)2 marks

The reactivity of unsaturated compounds is important in organic chemistry.

Description

Unsaturated compounds can undergo various reactions due to their double or triple bonds, making them more reactive than saturated compounds.

a
Explain why unsaturated compounds are more reactive than saturated compounds.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)1 marks

Description

Unsaturated compounds contain one or more carbon-carbon double or triple bonds, which affect their chemical properties and reactivity.

a
Define the term 'unsaturated compound'.
Your answer
Aim for approximately 1 distinct marking point.
[1]