When sodium is dissolved in liquid ammonia, a solution of deep blue color is obtained. The color of the solution is due to
1. Ammoniated electron
2. Sodium ion
3. Sodium amide
4. Ammoniated sodium ion
Hint: Electron is surrounded by ammonia molecule.
All alkali metal dissolve in liquid NH3 giving highly conducting deep blue solution.
When light fall on these solution, the ammoniated electrons excite in higher energy level by absorbing red wavelengths and so transmitted light is blue.
