What is functional group isomerism? Explain by suitable example

1.	What is functional group isomerism? Explain by suitable example
Answer» Solution :Two or more COMPOUNDS having the same molecular formula but different functional groups are called functional isomers and this phenomenon is termed as functional group ISOMERISM Expample: The molecular formula `C_(3)H_(6)O` represents an aldehyde and a KETONE. `CH_(3)- CH_(2) - overset(overset(H)(\|))(C )=O and underset("Propanal (Propionaldehyde)")(CH_(3)CH_(2)CHO) and `underset("Propanone (Acetone)")(CH_(3)- underset(underset(O)(\|\|))(C )-CH_(3))`

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