Q11 / 160 · TS EAMCET 2024 (11 May Shift 1) · Chemistry

Identify the pair of hydrides which have polymeric structure

A
$\mathrm{LiH}, \mathrm{NaH}$
Correct answer
B
$\mathrm{BeH}_2, \mathrm{MgH}_2$
C
$\mathrm{NH}_3, \mathrm{CH}_4$
D
$\mathrm{B}_2 \mathrm{H}_6, \mathrm{H}_2 \mathrm{O}$

Solution

Beryllium and Magnesium hydrides are covalent and polymeric.

Hence, the correct answer is option: 'B'.

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