Chemistry - CHEMICAL BONDING Question with Solution | TestHub
ChemistryCHEMICAL BONDINGBack bonding, Bridge bonding & odd electron moleculesEasy2 minQB
ChemistryEasysingle choice
The sketch shows a halogen-bridged Ga₂Br₆ dimer. Each Ga is bonded to two terminal Br atoms and two bridging Br atoms. Which description is correct in the elementary donor-acceptor model?
Options:
Answer:
B
Solution:
Each Ga has four Br neighbours after dimerisation, so the elementary local description is approximately tetrahedral, conventionally sp³. Halogen lone-pair donation completes the coordination. It must not be confused with a three-centre two-electron hydride bridge. Tetrahedral terminal arrangements also prevent complete planarity.
Stream:JEESubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Back bonding, Bridge bonding & odd electron molecules
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
