The blue colour of the solution (metal dissol | vedclass

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(C) When an alkali metal dissolves in liquid ammonia,it forms a deep blue solution. This colour is due to the presence of ammoniated electrons,which a

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ammoniated electrons

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(C) When an alkali metal dissolves in liquid ammonia,it forms a deep blue solution. This colour is due to the presence of ammoniated electrons,which absorb energy in the visible region of the spectrum. The reaction is represented as: $M + (x+y)NH_3 \rightarrow [M(NH_3)_x]^+ + [e(NH_3)_y]^-$. The species $[e(NH_3)_y]^-$ is known as the ammoniated electron.

The blue colour of the solution (metal dissolved in liquid ammonia) is due to

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