When 3-pentenoic acid is boiled with NaOH, then it forms :

2-pentenoic acid

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sodium 3-pentenoate

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acetaldehyde

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acetic acid

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Solution

The correct option is A 2-pentenoic acid
When 3-pentenoic acid is boiled with NaOH, it forms 2-pentenoic acid. In this reaction, the non conjugate double bond is rearranged to more stable conjugate double bond. This is achieved by the addition of water molecule, followed by elimination of water molecule.

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