Chemistry - CHEMICAL BONDING Question with Solution | TestHub
ChemistryCHEMICAL BONDINGBack bonding, Bridge bonding & odd electron moleculesMedium2 minQB
ChemistryMediumnumerical
How many of these Lewis bases give symmetrical cleavage of diborane: R₂NH,RNH₂,R₃N,THF,pyridine,CO?
Answer:
4.00
Solution:
The source's elementary cleavage rule assigns RNH₂ and R₂NH to unsymmetrical cleavage; R₃N, THF, pyridine and CO give two neutral BH₃-donor adducts by symmetrical cleavage. Intended count 4. In actual primary/secondary amine chemistry, products can be mixtures depending on donor and conditions; unspecified R makes this a curriculum classification, not a universal product prediction. Printed 4 is retained with that qualification.
Stream:JEESubject:ChemistryTopic:CHEMICAL BONDINGSubtopic:Back bonding, Bridge bonding & odd electron molecules
⏱ 2mℹ️ Source: QB
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