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  4. Reaction of a carbonyl compound with dilute NaOH gives 4- methylpent -3- en -2- one. The carbonyl compound is:

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Q. Reaction of a carbonyl compound with dilute $NaOH$ gives $4-$ methylpent $-3-$ en $-2-$ one. The carbonyl compound is:

NTA AbhyasNTA Abhyas 2020Aldehydes Ketones and Carboxylic Acids

Solution:

The structure of the final product is

Solution

The compound is an $\alpha ,\beta -$ unsaturated ketone. Such type of products is formed by the aldol condensation reaction. Among the given reagents, acetone can give the given final product on reactions with dilute $NaOH$ .

Solution