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Question

In which of the following pairs of molecules/ions, the central atoms have sp2 hybridization?

A
NO2 and NH3
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B
BF3 and NO2
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C
NH2 and H2O
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D
BF3 and NH2
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Solution

The correct option is A BF3 and NO2
For an atom to have sp2 hybridization it's a steric number (SN) must be 3
SN of an atom is the sum of the total no. of sigma bonds and the lone pairs of that atom
Structure of the given molecules:
(Image)
NO2 and BF3 molecules have sp2 hybridized central atoms.

871152_68673_ans_41fee2b4cf8449bc954eeccde17e5c38.png

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