SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which three compounds can be considered to be a homologous series?
A
CH3OH, CH3CH2OH, CH3CH2CH2OH
B
CH3CH2OH, CH3CHO, CH3COOH
C
CH3CH2CH(OH)CH3, CH3CH2CH2CH2OH, (CH3)3COH
D
CH3CH2CH2CH2OH, CH3CH2OCH2CH3, (CH3)2CH2CHO
Explanation: 

Detailed explanation-1: -A homologous series of carboxylic acids can include pentanoic acid, hexanoic acid, and heptanoic acid with chemical formulas of CH 3 (CH 2 ) 3 COOH, CH 3 (CH 2 ) 4 COOH, and CH 3 (CH 2 ) 5 COOH, respectively where each successive compound differs from the previous one by a group.

Detailed explanation-2: -a Yes it is a homologous series. Because the difference between two successive homologs is – CH2.

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