Assertion : Alkali metals dissolve in liquid ammonia to give blue solutions.
Reason : Alkali metals in liquid ammonia give solvated species of the type `[M(NH_3)_n]^(+)` (M=alkali metals)

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Answer

B

Explanation

The blue colour of the solution is due to ammoniated electrons, ie, `e^(-)` `(NH_3)_x`.