Physics, asked by absrjt1234, 1 month ago

CH = CH2 is________type of hydrocarbon[a saturated, an Unsaturated] please Help​

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Answered by mahi124766
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answered Jun 14, 2018 by aditya23 Premium (918 points)

Hydrocarbons are defined as the compounds which are composed of Hydrogen and Carbon atoms.

(i)The names and general formula for saturated Hydrocarbons is Alkane and the formula is: CnH2n+2. The 'n' represents number of carbon atoms in molecule of the alkane.

(ii) The names and general formula for unsaturated hydrocarbons are: Alkene and Alkyne. The general formula for alkene is: CnH2n and for Alkyne, it is : CnH2n-2

Structure of saturated hydrocarbon:

Molecular formula for 1 carbon atom = CH4

Structure of unsaturated hydrocarbon:

Molecular formula for 2 carbon atom is Ethene C2H4

The structure of Ethene is as follows:

Molecular formula for 2 carbon atom is Ethyne C2H2

H-C=C-H

Unsaturated hydrocarbon can be made a saturated hydrocarbon by addition reaction. On addition of Hydrogen in presence of Nickle as catalyst, to a unsaturated hydrocarbon, results in formation of a saturated hydrocarbon. The chemical reaction is as follows:

This reaction is called Hydrogenation.

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