Question

Which gas will be released when lithium nitride is treated with water ?

• A. $N_2$
• B. $N{H}_3$
• C. $O_2$
• D. $H_2$

Answer 1

The correct option is B $N{H}_3$

Nitrogen gas will release when lithium nitride is treated with water.
$L{i}_{3}N+H_{2}O\to 3LiOH+N{H}_3$

Theory
Lithium shows exceptional behavior in reacting directly with nitrogen of air to form the nitride, $L{i}_{3}N$.
$2L{i}_{3}N\stackrel{\Delta }{⟶}6Li+N_2$
$L{i}_{3}N+3H_{2}O⟶3LiOH+N{H}_3$
Because of their high reactivity towards air and water, they are normally kept in kerosene oil.