In diborane, the two `H-B-H` angles are nearly

Give reasons of the following In diborane, two B - H - B bonds are different from common covalent bonds.

In the formation of B-H-B bridge in diborane, the orbitals involved in overlapping are

A : In Diborane containing eight -B-H bonds only four B-H bonds are on the plane . R : Boron in B_(2) H_(6) is sp^(2) hybridised .

A : In Diborane containing eight -B-H bonds only four B-H bonds are on the plane . R : Boron in B_(2) H_(6) is sp^(2) hybridised .