Question

which of the following hydrocarbons
undergo addition reactions
C2, H6, C3H8, C3H6 C2H2 & CH4
​

Answer 1

C3H6 and C2H2

its because only the unsaturated hydrocarbons can undergo addition reaction as they have double and triple bonds abd so,they have space for new elements,which will break the double and triple bonds to form saturated hydrocarbons

Answer 2

C3H6

C2H2

Since these are unsaturated hydrocarbons they undergo addition reaction.

:-)