Question

Which have a higher boiling point between alkanes, alkenes, and alkyne?

Is it alkanes, then alkenes, and the last is alkyne?

Answer 1

When comparing alkynes, alkenes, and alkanes of similar molecular weight and structure(unbranched), I am pretty sure alkynes will have the highest boiling point due to the fact of increased electron density from your pi orbitals. It is more "polarizable" so you have an increased dipole-dipole interaction between molecules thus increasing bp.

Answer 2

yea as adding to @A.Avinash_Goutham u see in alkynes they contain triple ond and its not easy to break them easily as comepared to alkene and alkane