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One mole of each of the following alkene...

One mole of each of the following alkenes is catalytically hydrogenated. The quantity of heat evolved will be the lowest in the case of

A

1-butene

B

trans-2-butene

C

cis-2-butene

D

1, 3-butadiene

Text Solution

Verified by Experts

The correct Answer is:
D
Since all four compounds form the same product butane, 1, 3 – butadiene is conjugated so it is the most stable compound and therefore its heat of hydrogenation should be the smallest.
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