Which compounds are isomers?

کون سے مرکبات آئسومرس ہیں؟

CH2CH2CHO and CH3COCH3

CH3OH and CH2CH2OH

CH4 and CCl3

None of these

Isomers are compounds with the same molecular formula but different structural arrangements.

CH₂CH₂CHO (Propenal) and CH₃COCH₃ (Acetone) have the same molecular formula (C₃H₆O) but different structures, making them functional isomers.