1.

When boron atom undergoes sp^3 hybridization

Answer»

all the four `sp^3` orbitals contain one electron in each of them
three orbitals contain one electron in each of them and the fourth one is vacant
TWO orbitals contain one electron in each of them and two OTHERS are vacant
one `sp^3` ORBITAL CONTAINS one electron pair while others have lone electrons

Answer :B


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