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When sodium is dissolved in liquid ammon...

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

Text Solution

Verified by Experts

The correct Answer is:
A
All alkali metal dissolve in liquid `NH_(3)` giving highly conducting deep blue solution.
`Na+(x+y)NH_(3)tounderset("Ammoniated cation")([Na(NH_(3))x]^(+))+underset("Ammoniated electron")(e(NH_(3))_(y)^(-))`
When light fall on these solutions, the ammoniated electrons excite in higher energy level by absorbing red wavelengths and so transmitted light is blue.
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