Q8 / 180 · COMEDK 2014 · Chemistry

Pick up the incorrect statement.

A
Dipole moment of ammonia is due to orbital dipole and resultant dipole in the same direction.
B
In $\mathrm{BF}_{3}$ bond dipoles are higher but dipole moment is zero.
C
Dipole moment is a vector quantity.
Correct answer
D
$\mathrm{O}_{2}$ and $\mathrm{H}_{2}$ show bond dipole due to polarisation.

Solution

$\mathrm{O}_{2}$ and $\mathrm{H}_{2}$ do not show bond dipole as they are homoatomic molecules, hence, they are non-polar.

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

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