Chemistry - GOC Question with Solution | TestHub
ChemistryGOCHyper conjugationEasy2 minQB
ChemistryEasysingle choice
Which alkene has the larger heat of hydrogenation ? Compare (a) 1-methylcyclohexene and (b) 3-methylcyclohexene.
(a) 
(b) 
Options:
Answer:
C
Solution:
In (a) the double bond is trisubstituted and carries 7 α-hydrogens. In (b) the double bond is disubstituted and carries only 3 α-hydrogens. So (a) is more stable and (b) has the larger heat of hydrogenation : a b.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Hyper conjugation
⏱ 2mℹ️ Source: QB
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