Question

Dihydrogen forms three types of hydrides, $(i)$ hydrides are formed by alkali metals and alkaline earth metals, $(ii)$ hydrides are formed by non-metals and $(iii)$ hydrides are formed by $d$ and $f$-block elements at elevated temperature. Complex metal hydrides such as $(iv)$ and $(v)$ are powerful reducing agents.

	(i)	(ii)	(ii)	(iv)	(v)
(a)	Covalent	Molecular	Saline	$NaH$	$LiH$
(b)	Molecular	Covalent	Ionic	$LiAl{H}_4$	$Ca{H}_2$
(c)	Ionic	Covalent	Interstitial	$LiAl{H}_4$	$NaB{H}_4$
(d)	Covalent	Saline	Interstitial	$LiAl{H}_4$	$NaB{H}_4$

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (C)

Correct answer is (c) c