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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Electrolysis

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Electrolysis

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Paper 4Theory (Extended)1 marks

Electrolysis of copper(II) sulfate solution.

Description

Electrolysis Setup

In a laboratory, a beaker contains aqueous copper(II) sulfate. Two electrodes are submerged in the solution: one is made of graphite and the other of copper.

  1. a

    State the product formed at the cathode during the electrolysis with graphite electrodes.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Electrolysis

Paper 4Theory (Extended)2 marks

Description

Electrolysis with Copper Electrodes

During the electrolysis of copper(II) sulfate using copper electrodes, observations are made at both electrodes.

  1. a

    Describe the observations made at the anode during this process.

    Aim for approximately 2 distinct marking points.

    [2]