NEET Chemistry The s-Block Elements Questions Solved

Assertion : Alkali metals dissolve in liquid ammonia and produce solvated cations and
solvated electrons

Reason : In concentrated solutions, the blue colour of the solutions of alkali metals in liquid ammonia, changes to bronze colour.

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(B) M+x+yNH3MNH3x++eNH3y-

    Above 3M concentration, the solutions are no longer blue but are bronze/copper-bronze
            coloured with a metallic luster due to formation of metal ion clusters.

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