Hydrocarbons - Result Question 63
####65. Given:
(I)
(II)
(III)
The enthalpy of the hydrogenation of these compounds will be in the order as : [2015]
(a) III $>$ II $>$ I
(b) II $>$ III $>$ I
(c) II $>$ I $>$ III
(d) I $>$ II $>$ III
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Solution:
- (a) Enthalpy of hydrogenation
$ \propto \frac{1}{\text{ stability of alkene }} $
$ \therefore \quad \text{ III }>\text{ II }>\text{ I } $