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JEE Main levelSingle correct optionDifficulty 2 of 3cb142

Both molecules have zero dipole moment in which pair?

A $H X_{2} O$ and $CO X_{2}$
B $SF X_{4}$ and $XeF X_{2}$
C $BF X_{3}$ and $NF X_{3}$
D $XeF X_{4}$ and $SF X_{6}$

Answer: D

XeF X_{4}

(square planar) and

SF X_{6}

(octahedral) are symmetrical, so both have zero dipole.

SF X_{4}

,

NF X_{3}

and

H X_{2} O

are polar.

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