Question

When electricity is passed through water..
a) hydrogen is evolved at anode
b) oxygen is evolved at cathode
c) hydrogen is evolved at cathode
d) no change occurs​

Answer 1

Answer:

When electricity is passed through water- (a) hydrogen is evolved at anode (b) oxygen gas is evolved at cathode ... (d) no change occurs ... hydrogen is evolved at anode.

Answer 2

Explanation:

When electric current is passed through water, water dissociates into hydrogen and oxygen. Hydrogen is deposited over negative pole and oxygen is deposited over positive pole. Deposition of hydrogen and oxygen at different poles is visible in the form of bubbles.