Identify the gas produced due to reduction of NH_4^ + ions at cathode during working of dry cell

MHT CET 2023 Chemistry question

Identify the gas produced due to reduction of ions at cathode during working of dry cell

(A)Ammonia
(B)HydrogenCorrect
(C)Hydrogen chloride
(D)Chlorine

Answer: (B)

Solution

In the dry (Leclanché) cell the cathode is a graphite rod surrounded by and carbon in a paste of and . Ammonium ions are reduced at the cathode: . The hydrogen gas formed by the gain of electrons is then oxidised

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Question ID VK-094734