Hydrocarbon class 11

HYDROCARBON ALKENE

name of the chapter: Hydrocarbon

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Lecturer from FIITJEE

simple notes:

A compound of carbon and hydrogen is known as a hydrocarbon. A hydrocarbon is said to be saturated if it contains only C—C single bonds. Benzene and its derivatives are called aromatic compounds

introduction of NCERT:

The term ‘hydrocarbon’ is self-explanatory which means compounds of carbon and hydrogen only. Hydrocarbons play a key role in our daily life. You must be familiar with the terms ‘LPG’ and ‘CNG’ used as fuels. LPG is the abbreviated form of liquified petroleum gas whereas CNG stands for compressed natural gas. Another term ‘LNG’ (liquified natural gas) is also in news these days. This is also a fuel and is obtained by the liquefaction of natural gas. Petrol, diesel, and kerosene oil are obtained by the fractional distillation of petroleum found under the earth’s crust. Coal gas is obtained by the destructive distillation of coal. Natural gas is found in the upper strata during the drilling of oil wells. The gas after compression is known as compressed natural gas. LPG is used as a domestic fuel with the least pollution. Kerosene oil is also used as a domestic fuel but it causes some pollution. Automobiles need fuels like petrol, diesel, and CNG. Petrol and CNG-operated automobiles cause less pollution. All these fuels contain a mixture of hydrocarbons, which are sources of energy. Hydrocarbons are also used for the manufacture of polymers like polythene, polypropene, polystyrene, etc. Higher hydrocarbons are used as solvents for paints. They are also used as the starting materials for the manufacture of many dyes and drugs. Thus, you can well understand the importance of hydrocarbons in your daily life. In this unit, you will learn more about hydrocarbons.

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