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What is an homologous series: explain wi...

What is an homologous series: explain with an example.

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A group of compounds of carbon having same general and same functional group is called homologous series. The members, of homologous series are called mologue. For example, alcohol.
(1) Methanol - `CH_(3)OH`
(2) Ethanol - `C_(2)H_(5)OH`
(3) Propanol - `C_(3)H_(7)OH`
(4) Butanol - `C_(4)H_(9)OH`
Homologous series compounds have following characteristics :
(a) They have same general formula for all compounds.
(b) They have same functional group.
( c) They have same chemical but different physical property.
(d) They have difference of `-CH_(2)` between two success members.
(e) Difference between masses of two successive members is 14 amu.
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