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Question

Number of 90 FBrF bond angles in BrF5 is:

A
\N
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B
8
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C
6
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D
4
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Solution

The correct option is A \N
Geometry of BrF5:
Steric number of BrF5 = 12(7+5)=6
So, the number of bond pairs are 5 and the number of lone pairs is 1. The hybridisation is sp3d2. It assumes a square pyramidal structure. Hence, due to the distortion caused by the lone pair, none of the bonds will be 90 to each other.

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