2. Organic compound Composed of only hydrogen & carbon Energy source- Petroleum Naturally occur in crude oil Simple Hydrocarbon Variation

3. Alkanes 11 st type of hydrocarbon SSingle bond NNo loops NNot very active LLittle biological activity HHomologous series of organic compounds

4. Alkenes Olefin or olefine Unsaturated chemical compund Double bond General formula C n H 2n Widely used in petrochemical industry

5. Alkynes Acetelynes Triple Bond 2 carbon atoms Hydrophobic More Reactive General formula C n H 2n-2

6. Thank You