Question

Select the correct options among the following. I. Li can form $Li_3N$
II. $Li_2CO_3 < Na_2CO_3 < K_2CO_3 < Rb_2CO_3 < Cs_2CO_3$ (Thermal stability)
III. $LiCl$ is soluble in pyridine IV. $CaH_2$ is known as hydrolith

• A. I, II only
• B. I, II, III only
• C. I, III, IV only
• D. I, II, III, IV

Answer 1

Answer: (D)

(I) $6Li + N_2 \rightarrow 2Li_3N$
Other alkali metals do not react with $N_2$
(III) LiCl, being covalent, is soluble in pyridine.