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

Question

Given <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-nnyonfsysdw0gxtn.jpg" /> The enthalpy of the hydrogenation of these compounds will be in the order as (A) III > II > I (B) II > III > I (C) II > I > III (D) I > II > III

Tardigrade Admin · Accepted Answer

R-CH=CH-R+ underset(1 m o l e)H2 arrow R-CH2-CH2-R+Δ H(.Heatofhydrogenation.) Enthalpy of hydrogenation propto (1/s t a b i l i t y o f a l k e n e) propto (1/N u m b e r o f α - H a t o m s) Stability order I > II > III. Heat of hydrogenation order III > II > I

Q. Given The enthalpy of the hydrogenation of these compounds will be in the order as

III > II > I

II > III > I

II > I > III

I > II > III

R−CH=CH−R+(1mole)H2​​→R−CH2​−CH2​−R+ΔH(Heatofhydrogenation) Enthalpy of hydrogenation ∝stabilityofalkene1​∝Numberofα−Hatoms1​ Stability order I > II > III. Heat of hydrogenation order III > II > I

Q. Given

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