MHT CET 2024 Chemistry question

What is the number of lone pair of electrons on central halogen atom in ?

(A)2Correct
(B)3
(C)1
(D)0

Answer: (A)

Solution

Central atom Br has 7 valence electrons. Three are used to bond with three F atoms, leaving electrons, i.e. 2 lone pairs. Steric number bond pairs lone pairs , giving trigonal

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Question ID VK-093214