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Chemistry-

General

Easy

Question

Geometrical configuration of $B F subscript 3 end subscript$ and $N F subscript 3 end subscript$ molecules is

The same because of same covalency of the central atom
Different because $B F_{3}$ is polar and $N F_{3}$ is non-polar
Different because $B F_{3}$ is non-polar and $N F_{3}$ is polar
None is correct

The correct answer is: Different because $B F subscript 3 end subscript$ is non-polar and $N F subscript 3 end subscript$ is polar

Resultant dipole Due to lone pair
Moment is zero, on N, $N F subscript 3 end subscript$ is polar
Thus non-polar

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