Which type of isomerism is shown by but-1-yne and but-1,3-diene?

Functional isomerism

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Chain isomerism

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Ring chain isomerism

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Position isomerism

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Solution

The correct option is D Functional isomerism
Functional isomerism is shown by but-1-yne and but-1,3-diene.
Alkynes having four or more carbon atoms are functional isomers of dienes i.e., compounds containing two double bonds.

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