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)1 marks

Understanding the structure of organic compounds is essential in chemistry.

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]

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Paper 3Theory (Core)2 marks

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]