Q38 of 312 Page 241

State two characteristics of a homologous series.

Characteristics of homologous series:

(i) Any two adjacent homologues differ by one carbon atom and two hydrogen atoms in their molecular formulae.


(ii) All the compounds of homologous series show similar chemical properties.



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37 What makes the candle flame yellow and luminous? 38 What is homologues series? Explain with an example. 38 The molecular formula of an organic compound is C18H36. Name its homologous series. 38 Select the hydrocarbons which belong to the same homologous series. Give the name if of each series.

CH4, C2H2, C2H4, C2H6, C4H10, C3H4, C3H6,