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. $Ne$
• B. $Ar$
• C. $N_2$
• D. $Kr$

Answer 1

Answer: (C)

$N_2$

To prevent the formation of oxides, peroxides and superoxides, alkali metals are sometimes stored in an inert atmosphere.

$N_2$ is inert gas.

$N_2$ can't be used with lithium since it reacts giving nitride.

$6Li+N_2⟶2L{i}_{3}N$

Option C is correct.