Select a pair of homologous from the following
C3H6 and C4H10
CH3COOH and C2H5COOH
O Ca Hg and C₂H4
(CH3)2CO and C3H CHO
Answers
Explanation:
C3 H6 and C4H10 - OCa Hg and C2H4
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A series of organic compounds each containing a characteristic functional group and the successive members differ from each other in the molecular formula by −CH
2
− group is called homologous series.
In homologous series, homologues are arranged in the increasing order of their molecular mass.
Characteristics of homologous series :
Homologues can be represented by same general formula and functional group.
They can be prepared by the same chemical methods.
They show similar chemical properties, and gradation in physical properties such as melting point, boiling point, density, solubility, etc.
Here, C
3
H
6
, C
4
H
8
and C
5
H
10
differ by −CH
2
− group, hence they belong to same homologous series.
Explanation:-
The compounds which have the same general formula, they are called compounds belonging to the same homologous series.
Among the given list of compounds, the following compounds have the same general formula.
The above given compounds are homologous series of alkanes as they posses same general formula.