What is meant by homologus series and write the characteristics of homologus series
Answers
In organic chemistry, a homologous series is a series of compounds with the same functional group and similar chemical properties in which the members of the series differ by the number of repeating units they contain.
Four characteristics of a homologous series are:
(i) The general formula of all compounds in the series is the same.
(ii) They have the same functional group.
(iii) Their physical properties such as melting point, boiling point, density, generally show a gradual change with increase of molecular formula in the series.
(iv) Their chemical properties show close similarities due to the pressure of the same functional group in them.
(v) Consecutive members of the series differ from each other by -CH2- group which is known as the methylene group and their molecular weight differs by 14 units.
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