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01/02/2022 2:32 pm
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Which one of the following compounds would have the highest heat of hydrogenation?
(a) CH2 = CH2
(b) CH3 - CH2 - CH = CH2
(c) CH3CH = CHCH3
(d) (CH3)2C = C(CH3)2
1 Answer
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01/02/2022 2:33 pm
Correct answer: (a) CH2 = CH2
Explanation:
The heat of hydrogenation of an alkene depends upon its stability. Higher the stability, lower the heat of hydrogenation. Since CH2 = CH2 has no substituent, it is the least stable alkene and hence has the highest heat of hydrogenation