Question

Assertion :During the electrolysis of water, two faraday of charge will produce a total of $33.6$ litre of gases at STP at electrodes. Reason: In the electrolysis of water, two faraday of charge will produce half mole of $H_2$ gas and one fourth mole of $O_2$ gas.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Assertion is incorrect but Reason is correct

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

During electrolysis of water,

at anode: $4O{H}^{-}\to 2H_{2}O+O_2+4e^{-}$

at cathode: $4H^{+}+4e^{-}\to 2H_2$

at anode 2 faraday of charge is producing 11.2 L (0.5 mole) of oxygen gas and 22.4 L (1 mole) of hydrogen gas

total gas produced = 33.6 L

So, reason is incorrect.