Q.

In the complex, BH3CO, what is the type of back bond from B to C ?

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a

σπ

b

ππ

c

σπ

d

ππ

answer is D.

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Detailed Solution

The type of Bh3Co back bond from B to C is σπ.

Structure of this molecule is,

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When one atom in a compound has a single electron and the other has an open orbital adjacent to it, back bonding, a type of bonding, happens between the two atoms. A molecule with back bonding possesses pi-bonding properties because pi-bonding happens after the sigma bond forms.

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