Question

Alkali metals dissolve in liquid $N{H}_3$, then which of the following observation(s) is/are true?

• A. $H_2$ gas is liberated
• B. Solution is blue due to the presence of solvated electrons
• C. Solution is conducting
• D. All of the above

Answer 1

The correct option is D All of the above

Alkali metals dissolve in liquid $N{H}_3$:
$M+N{H}_3\to MN{H}_2+\left(1/2\right)H_2$
Dilute solutions of alkali metals in liq. ammonia are dark blue in colour due to solvated metal ions and solvated electrons.
This solution is highly conductive due to the presence of solvated ions and electrons.