Question

Match the species in Column I with given property (ies) in Column II.

Answer 1

(A). Lithium Nitride $\left({Li}_{3}N\right)$ is the only stable alkali metal nitride. Lithium salts give bright red color. It is used in automobile airbags.
(B). $LiCl$ is ionic while due to small size of ${Li}^{+}$ion, it is soluble in non-polar solvents. It has hygroscopic properties thus is used for humidity control.
(C), (D) $K{O}_2$ and ${Rb}_2{O}_3$ are paramagnetic as they are superoxides.