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Chemistry - GOC Question with Solution | TestHub

ChemistryGOCHyper conjugationMedium2 minQB
ChemistryMediumsingle choice

Correct increasing order of heat of combustion for following compounds is?

(1) Electronic Displacement Effect diagram 681 (2) Electronic Displacement Effect diagram 682

(3) Electronic Displacement Effect diagram 683 (4) Electronic Displacement Effect diagram 684

Options:

Answer:
B
Solution:

Compounds 3 and 4 have fewer carbon atoms than 1 and 2, so their molar heats of combustion are smaller. Within each isomeric pair the trans internal alkene is more stable than its cis or terminal partner and releases less heat. Thus 3 < 4 < 1 < 2, using heat released as a positive magnitude.

Stream:JEESubject:ChemistryTopic:GOCSubtopic:Hyper conjugation
⏱ 2mℹ️ Source: QB

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