Saved Bookmarks
| 1. |
If Heat of hydrogenation of 1-butene is 30 Kcal then heat of hydrogenation of 1,3-butadiene is ? (i) 30(ii)60(iii) 57(iv) 25 |
|
Answer» Correct Option- (iii) 57 Explanation- 1,3-butadiene requires two moles of hydrogen so heat of hydrogenation should be 60 Kcal but 1,3-butadiene is stabilized by resonance than propane so heat of hydrogenation of 1,3-butadiene will not be twice of 30. Actual ΔH - 60 > ΔH > 30 Kcal. |
|