Home Chemistry General Organic Chemistry JEE Main 2026 Identify correct statements from the followi…
Chemistry General Organic Chemistry JEE Main 2026 Single Correct MCQ
Published on: August 12, 2026

Identify correct statements from the following :

A
Propanal and propanone are functional isomers.
B
Ethoxyethane and methoxypropane are metamers.
and and (E) only
C
But-2-ene shows optical isomerism.
only and
D
But-1-ene and but-2-ene are functional isomers.
(E) Pentane and 2, 2-dimethyl propane are chain isomers. Choose the correct answer from the options given below:
only
and (E) only

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Text Solution

Verified by Experts
The correct answer is:
D

Propanal ( ) and propanone ( ): Same formula , different functional groups (aldehyde vs ketone) → Functional isomers. True
Ethoxyethane ( ) and methoxypropane ( ): Same ether group, different alkyl groups Metamers. True
But-2-ene : No chiral carbon, shows geometrical isomerism (cis-trans), not optical. False
But-1-ene and but-2-ene: Both are alkenes, differ in position of double bond → Position isomers, not functional isomers. False
(E) Pentane and 2,2-dimethylpropane: Both , different carbon skeleton → Chain isomers. True

Correct: A, B and E only.

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