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Q.
The dipole moment of
is $ 1.5\,D$. The dipole moment of
Chemical Bonding and Molecular Structure
Solution:
Resultant dipole moment of $C-X$ dipoles in $1,4$ position is zero. The resultant of other two $C - X$ dipoles in $3,5$ position
$=\sqrt{(1.5)^{2}+(1.5)^{2}+2 \times 1.5^{2} \times \cos 120^{\circ}}=1.5\, D$
