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Question

The geometry and the type of hybrid orbitals present about the central atom in BF3 is .

A
Pyramidal, sp3
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B
Trigonal, sp2
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C
Linear, sp
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Solution

The correct option is B Trigonal, sp2

We can do this question in two different ways, lets calculate electron pairs for BF3. Here, B is our central atom, and we know that,

ep = V+L+AC2 = 62 = 3

Therefore, the geometry will be trigonal planar.

Trigonal planar sp2 hybridised

Or

Lets write electronic configuration for Boron.

sp2 hybridisation Trigonal Planar


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