JEE MAIN - Chemistry (2004 - No. 64)

The states of hybridization of boron and oxygen atoms in boric acid (H3BO3) are respectively
sp2 and sp2
sp3 and sp3
sp3 and sp2
sp2 and sp3

Explanation

Structure of  H3BO3  is

AIEEE 2004 Chemistry - Chemical Bonding & Molecular Structure Question 225 English Explanation

Here Boron has 3 sigma bond. So it is sp2 hybridised.

And oxygen has two sigma bond and two lone pair. So it sp3 hybridised.

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