Given, The enthalpy of hydrogenation of these compounds will be in the order as:

Given,




The enthalpy of hydrogenation of these compounds will be in the order as:

1. $\mathrm{I}>\mathrm{I}\mathrm{I}>\mathrm{I}\mathrm{I}\mathrm{I}$
2. $\mathrm{I}\mathrm{I}\mathrm{I}>\mathrm{I}\mathrm{I}>\mathrm{I}$
3. $\mathrm{I}\mathrm{I}>\mathrm{I}\mathrm{I}\mathrm{I}>\mathrm{I}$
4. $\mathrm{I}\mathrm{I}>\mathrm{I}>\mathrm{I}\mathrm{I}\mathrm{I}$

Solution

Enthalpy of hydrogenation is inversely proportional to stability of alkene.

Asked in: NEET 2015 (Phase 1)

Practice more Hydrocarbons questions on Aicharya