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Question

To prevent the formation of oxides, peroxides and superoxides, alkali metals are sometimes stored in an inert atmosphere. Which of the following gases should not be used for lithium?

A
Ne
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B
Ar
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C
N2
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D
Kr
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Solution

The correct option is B N2
To prevent the formation of oxides, peroxides and superoxides, alkali metals are sometimes stored in an inert atmosphere.

N2 is inert gas.

N2 can't be used with lithium since it reacts giving nitride.

6Li+N22Li3N

Option C is correct.

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