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Q.

Which of the following statement about solution of alkali metals in liquid ammonia is correct?

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a

Both the dilute solution as well as concentrated solution are paramagnetic in nature.

b

None of the above

c

Charge transfer is the responsible for the colour of the solution.

d

The solution have strong oxidizing properties.

answer is B.

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Detailed Solution

Due to the unpaired electrons that are present in the cavities of the diluted ammoniacal solution, it is paramagnetic. Ammoniated electrons create electron pairs when present in concentrated solutions, which reduces the paramagnetic property.

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