Question

When sodium is dissolved in liquid ammonia, a solution of deep blue colour is obtained. The colour of the solution is due to
A. ammoniated electron
B. sodium ion
C. sodium amide
D. ammoniated sodium ion

Answer 1

Correct Answer - A
The blue colour of the solution is due to the ammoniated electron which absorbs energy in the visible region of light and thus imparts blue colour to the solution.
`M+(x+y)NH_(3) to [M(NH_(3))_(x)]^(+) +[e(NH_(3))_(y)]^(-)`