Chemistry - CHEMICAL BONDING Question with Solution | TestHub

ChemistryCHEMICAL BONDINGBack bonding, Bridge bonding & odd electron moleculesMedium2 minQB

ChemistryMediummultiple choice

Type of bond(s) in $B_{2} H_{6}$ :

Options:(select one or more)

Answer:

C, D

Solution:

In diborane (B₂H₆), there are two distinct types of chemical bonds:

Terminal B–H bonds: Four bonds are regular covalent $2 c - 2 e^{-}$ (two-center, two-electron) bonds formed by terminal hydrogens.

Bridging B–H–B bonds: Two bonds are $3 c - 2 e^{-}$ (three-center, two-electron) bonds, where two electrons are shared across three atoms, creating "banana bonds."

Since there is no direct B–B bond, options (C) and (D) are the correct descriptions of the bonding.

Stream:JEESubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Back bonding, Bridge bonding & odd electron molecules

⏱ 2mℹ️ Source: QB

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