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.