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#functional group isomerism

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Which type of isomerism is shown by CH₃CH₂CHO and CH₃COCH₃?

CH₃CH₂CHO (propanal) and CH₃COCH₃ (acetone) have the same molecular formula (C₃H₆O) but different functional groups (aldehyde vs. ketone), indicating functional isomerism.

Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Isomerism - Structural Isomerism - Chain Position Functional Metamerism