Arrange the following according to their increasing order of boiling points.
Which of the following does not belong to the same homologous series?
(1) C4H10 (2) C2H6 (3) C3H8 (4) C4H8
Which of the following will give addition reactions and why ? C4H10, C2H6, C2H4, CH4, C3H8, C3H4