Select the correct statement(s) about ammonia.

A $PH X_{3}$ is a weaker Lewis base than $NH X_{3}$ .
BThe equilibrium yield of $NH X_{3}$ in $N X_{2} + 3 H X_{2} 2 NH X_{3}$ (exothermic) increases on raising the temperature at constant pressure.
C $NH X_{3}$ dissolves $AgCl$ by forming $[Ag (NH X_{3}) X_{2}] X^{+}$ , using the lone pair on nitrogen.
DThe boiling point of $NH X_{3}$ is higher than that of $PH X_{3}$ because of hydrogen bonding in $NH X_{3}$ .

Answer: A, C, D

Ammonia complexes

Ag X^{+}

through its lone pair, and its lone pair is more available than in

PH X_{3}

. Hydrogen bonding raises its boiling point. The forward reaction is exothermic, so higher temperature lowers the equilibrium yield (it only speeds up the rate).

Practice p-Block Elements: Groups 15 and 16 More on Nitrogen compounds: ammonia, oxides of nitrogen, nitric acid

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Select the correct statement(s) about ammonia.

Answer: A, C, D

More questions on Nitrogen compounds: ammonia, oxides of nitrogen, nitric acid