Compare heat of hydrogenation of the following

Question

Compare heat of hydrogenation of the following <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-sarvzcmh1hxq.png" /> (A) I>II>III (B) III>II>I (C) II>III>I (D) II>I>III

Tardigrade Admin · Accepted Answer

For isomeric alkene

Heat of hydrogenation

\propto \frac{1}{St abi l i t i es o f a l k e n e}

More the number of

α

- hydrogen atoms, more is the stability of alkene and less is the heat of hydrogenation value.

Q. Compare heat of hydrogenation of the following

$I > II > III$

$III > II > I$

$II > III > I$

$II > I > III$

For isomeric alkene

Heat of hydrogenation $\propto \frac{1}{St abi l i t i es o f a l k e n e}$

More the number of $α$ - hydrogen atoms, more is the stability of alkene and less is the heat of hydrogenation value.

Q. Compare heat of hydrogenation of the following

I>II>III

III>II>I

II>III>I

II>I>III

For isomeric alkene Heat of hydrogenation ∝Stabilitiesofalkene1​ More the number of α - hydrogen atoms, more is the stability of alkene and less is the heat of hydrogenation value.

$I > II > III$

$III > II > I$

$II > III > I$

$II > I > III$

For isomeric alkene

Heat of hydrogenation $\propto \frac{1}{St abi l i t i es o f a l k e n e}$

More the number of $α$ - hydrogen atoms, more is the stability of alkene and less is the heat of hydrogenation value.