Which of the following statements are correct. Answer on the basis of Fig.11.1.


The 2 boron atoms and 4 terminal hydrogen atoms in diborane lie in the same plane and the 2 bridging hydrogen atoms lie in the perpendicular plane.


Each of the two boron atoms is in the sp3-hybrid state.


Two of the four orbitals of each, of the boron atom overlap with two terminal hydrogen atoms forming two normal B - H σ-bonds. One of the remaining hybrid orbitals (either empty or singly occupied) of one of the boron atoms, 15-orbital of H (bridge atom) and one of the hybrid orbitals of the other boron atom overlap to form a delocalized orbital covering the three nuclei with a pair of electrons. This is a three-centre two-electron bond.


Similar overlapping occurs with the second hydrogen atom (bridging) forming three centre two electrons bond.

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