First slide

Diborane

Question

Which of the following is correct for diborane?

Moderate

A

lt is non-combustible gas
B

It is highly toxic gas
C

It is a Lewis base
D

It has linear structure

Solution

B₂H₆ catches fire spontaneously in air releasing on enormous of energy.
$B_{2} H_{6} + 3 O_{2} ⟶ B_{2} O_{3} + 3 H_{2} O; ΔH = - 1976 kJ {mol}^{- 1}$
B₂H₆ is Lewis acid (electron deficient unit)
The structure of B₂H₆ has 2B and 4H in. a plane and 2H atoms form, two banana, (H-bridge) bonds between two B-atoms.
It is highly Toxic gas.

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