NEET Chemistry The s-Block Elements Questions Solved

When sodium metal is dissolved in liquid ammonia, a blue solution is formed. The blue colour is due to:

(a) solvated Na+ ions

(b) solvated electrons

(c) solvated NH2-ions

(d) solvated protons

(b) Na + (x+y)NH3           NaNH3x+ + eNH3y-;

This ammoniated electron is responsible for blue colour of solution, reducing nature and good conductor nature of solution.

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