Why alkali metals gives blue solution when it reacts wirh amonia?

1.	Why alkali metals gives blue solution when it reacts wirh amonia?
Answer» Alkali metals dissolve in ammonia to form a blue colour solution. The blue colour of the solution is due to ammoniated electron which absorbs energy in the visible region of light and imparts blue colour to the solution.M + (x + y)NH3 →[M(NH3 )x ]+ + [e(NH3 )y ]−

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