(a) The boxes given here with numbers 1, 2, 3 and 4 represent a class of hydrocarbons. Write the name of first member of that respective class according to the numbers given. (b) Name the functional group in the following structures of hydrocarbon compounds and name these hydrocarbon compounds :

(a) The boxes given here with numbers 1, 2, 3 and 4 represent a class

1.	(a) The boxes given here with numbers 1, 2, 3 and 4 represent a class of hydrocarbons. Write the name of first member of that respective class according to the numbers given. (b) Name the functional group in the following structures of hydrocarbon compounds and name these hydrocarbon compounds :
Answer» Solution :(a) (1) Methane (2) Ethyne (3) CYCLOPROPANE (4) Benzene (b) (i) CARBOXYLIC group, Butanoic acid (II) Aldehyde, Propanal