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Electrolysis and Electrolytes

The following...

Question

The following are some statements about electrolysis:
I) Involves flow of electrons from anode to cathode
II) Involves no chemical reaction at electrodes
III) Oxidation occurs at anode and reduction at cathode
IV) Anions migrate towards cathode

A

Only I and III are correct

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B

Only I and II are correct

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C

Only I, II and III are correct

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D

All are correct

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Solution

The correct option is C Only I and III are correct
During electrolysis, an electric current passes through the electrolyte. This is accompanied by a chemical change. Hence option (II) is incorrect.
During electrolysis, anions migrate towards anode and cations migrate towards cathode.
Hence option (IV) is incorrect.

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