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Question : 9
Total: 27
What is a homologous series of carbon compounds ? Give an example and list its three characteristics.
Solution:
A homologous series is a group of organic compounds having similar structures and similar chemical properties in which the successive compounds differ by CH 2
Example : Alkanes with general formulaC n H 2 n + 2
Characteristics :
(i) All the members of a homologous series can be represented by the same general formula and they have same functional group.
(ii) Any two adjacent homologues differ by 1 carbon atom and 2 hydrogen atoms in their molecular fomulae.
(iii) The difference in the molecular masses of any two adjacent homologues is14 u
Example : Alkanes with general formula
Characteristics :
(i) All the members of a homologous series can be represented by the same general formula and they have same functional group.
(ii) Any two adjacent homologues differ by 1 carbon atom and 2 hydrogen atoms in their molecular fomulae.
(iii) The difference in the molecular masses of any two adjacent homologues is
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