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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Oxides

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Oxides

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Paper 3Theory (Core)2 marks

Properties of Oxides

Description

Properties of Oxides

Acidic oxides react with water to form acids, while basic oxides react with acids to form salts.

  1. a

    Describe the reactions of acidic and basic oxides with water and acids respectively.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Oxides

Paper 3Theory (Core)1 marks

Description

Oxide Classification

Oxides can be categorized based on their properties into acidic and basic types. Acidic oxides include SO2 and CO2, while basic oxides include CuO and CaO.

  1. a

    State the two categories of oxides mentioned in the description.

    Aim for approximately 1 distinct marking point.

    [1]