Match the column
Column-I
Compound)
Column-II
(Characteristics)
(A) NaH ( $ℓ$ )
(P) Covalent hydride
(B) $TiH_{1.73}$
(Q) Ionic hydride
(C) $CaH_{2} (s)$
(R) Metallic hydride
(D) $H_{2} S (g)$
(S) Non-conductor of electricity

(T) Conduct electricity

Question

Match the column

Column-I Compound)	Column-II (Characteristics)
(A) NaH ( $ℓ$ )	(P) Covalent hydride
(B) $TiH_{1.73}$	(Q) Ionic hydride
(C) $CaH_{2} (s)$	(R) Metallic hydride
(D) $H_{2} S (g)$	(S) Non-conductor of electricity
	(T) Conduct electricity

TestHub · Accepted Answer

(A) NaH(ℓ) → Q, T: Sodium hydride is an ionic hydride that conducts electricity in its molten (liquid) state due to free ions.

(B) TiH₁․₇₃ → R, T: Titanium hydride is a non-stoichiometric metallic hydride that retains electrical conductivity through its metallic lattice.

(C) CaH₂(s) → Q, S: Calcium hydride is an ionic hydride, but it is a non-conductor in the solid state because its ions are fixed.

(D) H₂S(g) → P, S: Hydrogen sulfide is a covalent molecular hydride and acts as a non-conductor due to the absence of free ions or mobile electrons.

Chemistry - Hydrogen and Its compound Question with Solution | TestHub