Essential Chemistry for IGCSE - Electricity And Chemistry (Section 5 - No. 20)
Which of the following is/are true regarding electrolysis? (Select all that apply)
It requires an external power source.
It involves redox reactions.
It can be used to extract metals from their ores.
It is a spontaneous process.
Explanation
Electrolysis requires an external power source to drive a non-spontaneous redox reaction and can be used to extract metals.
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