VSEPR and Bond Hybridization

AP Chemistry· difficulty 3/5

Why is CHCl3 polar while CCl4 is not?

A
$CHCl3 has a different hybridization$
B
$CCl4 has hydrogen bonding$
C
$CCl4 has a higher dipole moment$
D
$CCl4 is symmetric so dipoles cancel; CHCl3 is asymmetric so dipoles do not cancel$
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Explanation

Both are tetrahedral. CCl4's identical bonds give zero net dipole; CHCl3's H-C bond differs from C-Cl bonds, leaving a net dipole.

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