In the following reactions, product A and B are:

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JEE Mains Previous Paper 1 (Held On: 12 Jan 2019 Shift 1)
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JEE Main 04 April 2024 Shift 1
90 Qs. 300 Marks 180 Mins

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Concept:

The reactant in presence of dil.  Undergoes intermolecular aldol condensation reaction. 

As a result of this, β-hydroxyketone (a) is obtained which on hydrolysis followed by heating produces α, β-unsaturated ketone (b).

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