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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3cb160

Which of the following molecules has/have zero dipole moment?

A $XeF X_{4}$
B $SF X_{4}$
C $PCl X_{5}$
D $ClF X_{3}$

Answer: A, C

XeF X_{4}

is square planar and

PCl X_{5}

is trigonal bipyramidal with identical axial and equatorial pairs; both are symmetrical with zero net dipole.

SF X_{4}

(see-saw) and

ClF X_{3}

(T-shaped) are polar.

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