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Which of the following forms a homologou...

Which of the following forms a homologous series ?

A

Ethane, ethylene, acetylene

B

Ethane, propane, butanone

C

Methanan, ethanol, propanoic acid

D

Butane, 2-methylbutane, 2,3-dimethyl butane

Text Solution

Verified by Experts

The correct Answer is:
D
Butane `(CH_3 CH_2 CH_2 CH_3 M.F. C_4 H_10)`, 2-methylbutane `[(CH_3)_2 CHCH_2 CH_3, M.F. C_5 H_12)` and 2,3-dimethylbutane `(CH_3)_2 CH - CH(CH_3)_2 M.F. C_6 H_14]` have a common difference of `CH_2` and hence these three alkanes constitude a homologous series.
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