Essential Chemistry for IGCSE - Electricity And Chemistry (Section 8 - No. 44)
Which of the following statements is true about the electrolysis of acidified water?
Oxygen is formed at the cathode.
Hydrogen is formed at the anode.
The volume of hydrogen produced is twice the volume of oxygen produced.
The volume of oxygen produced is twice the volume of hydrogen produced.
Explanation
The electrolysis of water results in hydrogen and oxygen at the cathode and anode respectively, with hydrogen volume being twice that of oxygen.
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