Among the following compounds the one that is polar and has the central atom with $s p^{2}$ hybridisation is

A
$H_{2} C O_{3}$
B
$S i F_{4}$
C
$B F_{3}$
D
$H C l O_{2}$

Solution:

$H_{2} C O_{3}$ and $B F_{3}$ both have triangular planar structure

$B F_{3}$ is symmetrical

$∴ μ = 0$ hence non polar, $H_{2} C O_{3}$ is not symmetrical hence polar in nature.

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