Question

why the solution of sodium in liquid NH3 is blue? give reason​

Answer 1

Answer:

Solvated electron. The solvated electron is responsible for a great deal of radiation chemistry. Alkali metals dissolve in liquid ammonia giving deep blue solutions, which are conducting in nature. The blue colour of the solution is due to ammoniated electrons, which absorb energy in the visible region of light.

Answer 2

Answer:

Sodium(alkali metal) dissolves dissolves in liquid ammonia solution to form a blue solution characteristic of a solvated electron in liquid ammonia, which is conducting in nature, due to ammoniated electrons (solvated electron). ... Solvated electrons form (to give the blue colour).

Alkali metals dissolve in liquid ammonia giving deep blue solutions, which are conducting in nature. The blue colour of the solution is due to ammoniated electrons, which absorb energy in the visible region of light.

This is why the solution of sodium in liquid NH3 is blue.

Hope it helps ....................