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MHT CET202617 April 2026Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Identify the number of lone pair and bond pair electrons present in the valence shell of central atom in BrF ₃ .

Options

  1. A1 _ Lone pair and 2 _ Bond pair of electrons
  2. B2 _ Lone pair and 2 _ Bond pair of electrons
  3. C2 _ Lone pair and 3 _ Bond pair of electrons
  4. D1 _ Lone pair and 3 _ Bond pair of electrons

Correct answer

C. 2 _ Lone pair and 3 _ Bond pair of electrons

Step-by-step solution

The central atom in BrF ₃ is Bromine ( Br ). Number of valence electrons in Br = 7 . Bromine forms 3 single bonds with 3 Fluorine atoms. Therefore, the number of bond pairs is 3 . Number of electrons used in bonding = 3 . Remaining valence electrons on the central atom = 7 - 3 = 4 . Number of lone pairs = 4 2 = 2 . Thus, the central atom has 2 lone pairs and 3 bond pairs of electrons. Answer: 2 _ Lone pair and 3 _ Bond pair of electrons

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