Question
Question: Which is the correct order for heat of hydrogenation ?...
Which is the correct order for heat of hydrogenation ?
A
Hept-1-ene < Hept-3-ene < 2-Methylhex-2-ene
B
3-Methylcyclooctene < 1-Methylcyclooctene
< 1,2-Dimethylcyclooctene
C
3-Ethyloct-1-ene < 2-Ethyloct-1-ene < Oct-2-ene
D
Ethene<ethyne
Answer
Ethene<ethyne
Explanation
Solution
Heat of hydrogenation
αStabilityofalkeneorcrowdingacrossπbond1