Isomerism

Isomerism

  Two or more compounds having same molecular formula but different structural formula and properties are called isomers and phenomena itself is know as isomerism.For example C2H6O have two isomers 

                1.Ethanol

                2.Dimethyl isomerism 

Types of Isomerism  

                        Isomerism is of two main types:

1.Structural isomerism 

2.Geometric isomerism 

(1) Chain Isomerism    

                               In this case,the molecules have same molecular formula but differ in the arrangement of carbon atoms is the chain e.g.

   (a) Neo-pentane  

   (b)Isopentane

(2) Position Isomerism   

                          The isomerism is which the carbon chain remains same but position of same functional group will change.Or paostion of the double and triple bond in a molecule may change.For example 

Cl-CH2-CH2-CH3 (1 Chloropropane)

CH2-CH-CL-CH3((2-Chloropropane)

(3) Functional Group Isomerism

                    The isomerism in which nature of the functional group will change.

Ehanol, Acetone and  Dimethylether 

                                                                 

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