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what is the hybridization of its central atom of each of the following molecules? NF3, HBr...

what is the hybridization of its central atom of each of the following molecules?

NF3, HBr (answer for Br), CF4, CS2, P2, COF2, OI2

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Answer #1

The hybridisation can be determined by the number of lonepairs and bond pairs present. Its based on valence shell electron pair repulsion theory.

Consider the valence electrons. These electrons rearrange itself so as they can have similar energy and can take part in hybridisation.

N - 2s2 2p3

The s and 3 p orbitals mix to form 4 sp3 hybrid orbitals.

So NF3 is sp3 hybridised.

In case of C they arrange so that s and three p orbitals have 1 electron each and result in sp3 hybridisation. Thus CF4 is sp3 hybridised.

CS2 is sp2 hybridised. Here the elecron in 2s orbital doesn't shift to the empty p orbital. Same in case of COF2.

OI2 is sp2 hybridised.

HBr is sp3 hybridised.

P2 molecule doesn't exist.

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