MHT CET · Chemistry · Electrochemistry
Identify the gas produced due to reduction of \(\mathrm{NH}_4^{+}\)ions at cathode during working of dry cell.
- A Ammonia
- B Hydrogen
- C Hydrogen chloride
- D Chlorine
Answer & Solution
Correct Answer
(B) Hydrogen
Step-by-step Solution
Detailed explanation
In a dry cell, at cathode, \(\mathrm{NH}_4^{+}\)ions are reduced and hydrogen gas is produced.
\(2 \mathrm{NH}_{4(\mathrm{aq})}^{+}+2 \mathrm{e}^{-} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{aq})}+\mathrm{H}_{2(\mathrm{~g})}\)
\(2 \mathrm{NH}_{4(\mathrm{aq})}^{+}+2 \mathrm{e}^{-} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{aq})}+\mathrm{H}_{2(\mathrm{~g})}\)
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