Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) NEET Previous Year Question - P Block XII Single Correct MCQ
Published on: August 13, 2026

In BrF 3 molecule, the lone pairs occupy equatorial positions to minimise

A
lone pair-bond pair repulsions only
B
bond pair-bond pair repulsion only
C
lone pair-lone pair and lone pair-bond pair repulsons
D
lone pair-lone pair repulsions only

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Text Solution

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The correct answer is:
C

In BrF 3 molecule, Br is sp 3 d hybrid, but geometry is T-shaped due to distortion of geometry from trigonal-bipyramidal to T-shaped by the involvement of lone pair-lone pair repulsion. Here

lp-lp repulsion = 4

lp-bp repulsion = 2

bp-bp repulsion = 0

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