BrF3 (Bromine trifluoride) is a polar molecule.
Explanation :
BrF3 has three Br-F covalent bonds and two lone pairs of electrons.
Due to high difference in electronegativity values between Br and F, Br-F bonds are considered as polar.
The two lone pairs are positioned in the plane of triangle in the trigonal bipyramid geometry thus causing the unsymmetric charge distribution which in turn makes the molecule polar.
Therefore, BrF3 is polar.
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