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When sodium is dissolved in liquid ammonia, a solution of deep blue colour is obtained. The colour of the solution is due toA. ammoniated electronB. sodium ionC. sodium amideD. ammoniated sodium ion |
Answer» Correct Answer - A All alkali metal dissolve in liquid `NH_(3)` giving highly conducting deep blue solution. `Na +(x+y) NH_(3) rarr underset("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 absorbinf red wavelength and so transmitted light is blue. |
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