When sodium metal is dissolved in liquid ammonia, blue colou... | CHEMISTRY - REDOX REACTIONS IN TERMS OF ELECTRON TRANSFER REACTIONS | SolveeIt | Solveeit

Today, August 24

Question

When sodium metal is dissolved in liquid ammonia, blue colour solution is formed. The blue colour is due to.

A

Solvated $Na^{+}$ ions

B

Solvated electrons

C

Solvated $NH_{2}^{-}$ ions

D

Solvated protons

Answer

Solvated electrons

Explanation

Solution

When sodium metal is dissolved in liquid ammonia to form coloured solution. Dilute solutions are bright blue in colour due to the presence of solvated electrons.

$Na + (x + y)NH_{3} \rightarrow \lbrack Na(NH_{3})_{x}\rbrack^{+} + \underset{\text{Blue Colour}}{\lbrack e(NH_{3})_{y}\rbrack^{-}}$ .