1. a) What are hydrocarbons? Give examples. (b) Give the structural differences between saturated and unsaturated hydrocarbons with two examples each. (c) What is a functional group? Give examples of four different functional groups. Soln:

1. (Compounds of Carbon and hydrogen are called as Ex: Ethane, Methane
   1. All the bond in saturated Hydrocarbons are single bonds whereas bonds in the unsaturated Hydrocarbons are either double or triple bonds.

Saturated Hydrocarbon Ex: Ethane, Methane Unsaturated Hydrocarbons-Ethyne, Ethene

1. Functional groups are set of atoms joined in a specific manner which are responsible for characteristic chemical property of the compound.Ex: CHO-Aldehyde, OH-Hydroxyl , COOH- Carboxylic acid.