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NEET levelSingle correct optionDifficulty 1 of 3cb118

$BF X_{3}$ has polar B-F bonds but a zero dipole moment because

Athe molecule is pyramidal
Bthe molecule is planar and symmetrical, so bond dipoles cancel
Cboron has a lone pair that cancels the dipoles
Dfluorine is less electronegative than boron

Answer: B

BF X_{3}

is trigonal planar with three identical B-F bond dipoles at

12 0^{\circ}

. Their vector sum is zero.

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