Which of the following pairs of molecules is isostructural?
Which of the following pairs of molecules is isostructural?
$\mathrm{HgCl}_2, \mathrm{SO}_2$
$\mathrm{SnCl}_2, \mathrm{PbCl}_2$
$\mathrm{SF}_4, \mathrm{XeF}_4$
$\mathrm{NH}_3, \mathrm{SO}_3$
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.