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Question

State True or False.

The byproducts of electrolysis of impure water are hydrogen and oxygen.
True
False

A

True

B

False

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Solution

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Cell reactions during electrolysis of water are:

Anode: $2 H_{2} O \to O_{2} + 4 H^{+} + 4 e^{-}$

Cathode: $2 H_{2} O + 2 e^{-} \to H_{2} + 2 O H^{-}$

Reaction products are thus hydrogen and oxygen gas.

option A is correct .

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