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Question

About alkali metal − liquid NH3 solution which of the following statement is not true?

A
Blue colour due to ammoniated electrons
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B
Blue colour changes to bronze on dilution due to formation of metal clusters
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C
With increse in concentration of alkali metals paramagnetic nature decreases due to electron electron combination
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D
On heating blue colour becomes colourless due to formation of metal amide and H2 gas
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Solution

The correct option is B Blue colour changes to bronze on dilution due to formation of metal clusters
Blue colour changes to bronze with increase in concentration of alkali metal due to formation of metal clusters.

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