Cambridge IGCSE Chemistry practice

Paper 4 structured question: Oxides

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Paper

Marks

Topic

Oxides

Exam-style question

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Paper 4Theory (Extended)1 marks

Amphoteric oxides are important in various chemical reactions.

Description

Amphoteric oxides can react with both acids and bases. Examples include Al2O3 and ZnO.

a
State two examples of amphoteric oxides.
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[1]

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Paper 4Theory (Extended)2 marks

Description

Amphoteric oxides can neutralize acids and bases.

a
State the products formed when Al2O3 reacts with hydrochloric acid.
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Aim for approximately 2 distinct marking points.
[2]