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The number of three centred, 2 electron bonds in diborane is

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By Expert Faculty of Sri Chaitanya
a
2
b
4
c
3
d
6

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detailed solution

Correct option is A

In diborane each B atom undergoes sp3  hybridisation, it contains two B-H-B bridges. Each bridge bond is formed by overlapping of one "B"sp3  hybrid orbital with one electron, hydrogen s-orbital with one electron and another boron sp3 hybrid orbital without electron. That is the bridge head bond is a electron deficient three centre two electron bond.


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