Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of following has most negative heat of hydrogenation?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Heat of hydrogenation of alkenes is a measure of the stability of Carbon-Carbon double
bond. The smaller the numerical value of heat of hydrogenation of an alkene, the more stable the double bond there in. Stability of alkane (or double bond of alkene) 
Heat of hydrogenation
Stability of alkene 
No. of 
atoms Heat of Hydrogenation 
Alkene is least stable so, highest heat of hydrogenation.
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