MHT CET 2024 Chemistry question

What is the shape of bromine pentafluoride?

(1)Trigonal pyramidal
(2)Square pyramidalCorrect
(3)Square planar
(4)Distorted octahedral

Answer: (2)

Solution

In the central Br atom (7 valence electrons) forms 5 bonds with F, leaving 1 lone pair, so there are 6 electron pairs (5 bond pairs + 1 lone pair) and the hybridisation is . The electron-pair geometry is octahedral, and with one position occupied by the lone pair the

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Question ID VK-095619