Cambridge IGCSE Combined Science practice

Paper 4 structured question: Group I properties

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

At a glance

Paper

Marks

Topic

Group I properties

Exam-style question

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Paper 4Theory (Extended)3 marks

Group I elements are known for their unique properties and reactivity.

Description

Group I elements are soft, have low melting points, and react vigorously with water.

a
Describe the general trends in reactivity and melting points of Group I elements.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 4Theory (Extended)4 marks

Description

Group I elements react with water and halogens to form hydroxides and salts.

a
Explain why Group I elements are more reactive than Group II elements.
Your answer
Aim for approximately 4 distinct marking points.
[4]