Cambridge IGCSE Combined Science practice

Paper 3 structured question: Oxides

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Paper

Marks

Topic

Oxides

Exam-style question

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Paper 3Theory (Core)2 marks

Classification of oxides based on their properties.

Description

Oxides can be classified into acidic and basic oxides based on their chemical properties.

a
Define acidic oxides and give two examples.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 3Theory (Core)4 marks

Description

Acidic oxides react with bases, while basic oxides react with acids.

a
Compare the reactions of acidic oxides and basic oxides.
Your answer
Aim for approximately 4 distinct marking points.
[4]