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)	(iii)	(iv)	(v)
(A)	Covalent	Molecular	Saline	NaH	LiH
(B)	Molecular	Covalent	Ionic	LiAIH4	CaH2
(C)	Ionic	Covalent	Interstitial	LiAIH4	NaBH4
(D)	Covalent	Saline	Interstitial	LiAIH4	NaBH4

• A. (A) A
• A. (B) B
• A. (C) C
• A. (D) D

Answer 1

: Ionic Covalent Interstitial $LiAlH_{4}$ $NaBH_{4}$