Chemistry - GOC Question with Solution | TestHub
ChemistryGOCBond Length, Strength, Cleavage, Rotational Energy BarrierEasy2 minQB
ChemistryEasysingle choice
Compare the bond lengths of the indicated bonds in the given compounds :
Options:
Answer:
B
Solution:
In the first compound (a) the C=C is conjugated with C=O. In the second compound the C=C (b) is part of a diene that is conjugated, through C=C, with the C=O. The extended conjugation gives bond (b) more resonance and more single-bond character, so bond b is longer : a b.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Bond Length, Strength, Cleavage, Rotational Energy Barrier
⏱ 2mℹ️ Source: QB
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