Question

Two example of functional isomers

Answer 1

Examples of functional group isomers include acetone, which is a ketone, and propanal, an aldehyde. They both have the same chemical formula, but their functional groups are different.

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Answer 2

functional isomers are those who have the same molecular mass with a difference of a functional group. eg alcohols and ethers 

ethyl alcohol and diethyl ether are examples of functional isomers