1)

The bonding in diborane $[B_{2}H_{6}]$ can be described by


A) 4 two centre -two electron bonds and 2 three -centre -two electron bonds

B) 3 two centre-two electron bonds and 3 three centre-two electron bonds

C) 2 two centre-two electron bonds and 4 three centre-two electron bonds

D) 4 two centre- two electron bonds and 4 two centre -two electron bonds

Answer:

Option A

Explanation:

Diborane molecular formula $B_{2}H_{6}$

1282021228_m20.PNG

Diborane has 4 two centre -two  electron $(2C-2e^{-})$ bonds and 2 three -centre -two electron $(3C-2e^{-})$ bonds