Q5 / 160 · AP EAMCET 2023 (19 May Shift 1) · Chemistry

Which of the following pairs of molecules is isostructural?

A
$\mathrm{HgCl}_2, \mathrm{SO}_2$
Correct answer
B
$\mathrm{SnCl}_2, \mathrm{PbCl}_2$
C
$\mathrm{SF}_4, \mathrm{XeF}_4$
D
$\mathrm{NH}_3, \mathrm{SO}_3$

Solution

$\mathrm{Sn}$ and $\mathrm{Pb}$ both belong to group 14 of periodic table. Using two of their four valence electrons, they form $\mathrm{SnCl}_2$ and $\mathrm{PbCl}_2$ and both have bent/angular shape.

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

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