Question

Which of the following pairs of compounds are positional isomers ?
CH3 – CH2-CH2-CH2 - CHO
(1)
CH3 – CH2-CH2-C-CH3
CH3 -CH2-CH2-C-CH3 and
O
(2)
CH3-CH=CH2-CHO
CH3
CH3 – CH2-CH2-C-CH3 and
(3)
CH3 – CH2--C-CH2 - CH3
O​

Answer 1

Answer:

Hii

Position isomers differ in the position of the substituent atom or group or an unsaturated linkage in the same carbon chain.