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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Electrolysis

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Electrolysis

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Paper 3Theory (Core)1 marks

Electrolysis of sodium chloride solution.

Description

Electrolysis of Sodium Chloride Solution

When an electric current is passed through a solution of sodium chloride, the solution undergoes electrolysis.

  1. a

    State the products formed at the anode during the electrolysis of sodium chloride solution.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Electrolysis

Paper 3Theory (Core)3 marks

Description

Electrolysis of Water

When an electric current is passed through water, it decomposes into hydrogen and oxygen gases.

  1. a

    Explain the process of electrolysis of water, including the products formed at each electrode.

    Aim for approximately 3 distinct marking points.

    [3]