Identify the gas produced due to reduction of $\mathrm{NH}_4^{+}$ions at cathode during working of dry cell.
Identify the gas produced due to reduction of $\mathrm{NH}_4^{+}$ions at cathode during working of dry cell.
Ammonia
Hydrogen
Hydrogen chloride
Chlorine
Solution
In a dry cell, at cathode, $\mathrm{NH}_4^{+}$ions are reduced and hydrogen gas is produced.
$2 \mathrm{NH}_{4(\mathrm{aq})}^{+}+2 \mathrm{e}^{-} \longrightarrow 2 \mathrm{NH}_{3(\mathrm{aq})}+\mathrm{H}_{2(\mathrm{~g})}$