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CGP EDU Academic Team
Published on: August 14, 2026
Carbonyl compound which contains α –H gives aldol condenation reaction in presence of alkaline medium. The reaction between two molecules of acetaldehyde take place as follows in presence of base.

(i) Aldol condensation reaction is given by
Correct Matrix Matching
Text Solution
Verified by ExpertsThe correct answer is:
(i) ( d); (ii) (iii)
(i) ( d) α – H hydrogen is present.
(ii) 
(iii) Polycarbonyl compound with α hydrogen gives intramolecular aldol condensation reaction in presence of alkaline medium, to give entrophically favoured rings.
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