Question

From the compounds given below, identify the compounds which exhibit chain, position(main functional group) and functional isomerism.
(a) Alcohols (b) Aldehydes
(c) Ketones (d) Carboxylic acids

• A. $a,b$
• B. $b,c$
• C. $c,d$
• D. $a,c$

Answer 1

The correct option is D $a,c$

Isomerism is the phenomenon of exhibiting two or more compounds with same molecular formula but different physical and chemical properties. The chain isomers have a same molecular formula but different types of chains i.e., linear and branched. The positional isomerism arises due to different positions of side chains, substituents, functional groups, double bonds, triple bonds etc., on the parent chain. The functional isomerism arises due to the presence of different functional groups. Alcohols and Ketones which exhibits chain, position and functional isomers of each other. Both have general chemical formula $C_n{H}_{2n}O$