Of these compounds, which compound has minimum heat of hydrogenation per π -bond?

Question

Of these compounds, which compound has minimum heat of hydrogenation per π -bond? (A) cis-2-butene (B) trans-2-butene (C) 2, 3-dimethyl-2-butene (D) benzene

Tardigrade Admin · Accepted Answer

Heat of hydrogenation propto ( text1/ textstability textof textcompound) Benzene is most stable because it is aromatic so it will have least heat of hydrogenation.

Q. Of these compounds, which compound has minimum heat of hydrogenation per $π$ -bond?

cis-2-butene

trans-2-butene

2, 3-dimethyl-2-butene

benzene

Heat of hydrogenation $\propto \frac{1}{stability of compound}$

Benzene is most stable because it is aromatic so it will have least heat of hydrogenation.

Q. Of these compounds, which compound has minimum heat of hydrogenation per π -bond?