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Question
Write the products formed when CH3CHO reacts with the following reagents: CH3CHO in the presence of dilute NaOH
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Solution 1
Two molecules of ethanal condense in presence of a dilute NaOH to form 3 hydroxybutanal.

Solution 2
Reaction of acetaldehyde with acetaldehyde in the presence of dilute NaOH, this is the kind of Aldol reaction by which obtained 3-hydroxybutanal as product. Further proceed reaction when using heat in the reaction, its gives aldol condensation product which is But-2-enal

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RELATED QUESTIONS
Write chemical equations of the following reaction :
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\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\phantom{}\ce{2CH3 - C = O ->[Ba(OH)2] A ->[Δ] B + H2O}
\end{array}\]
Predict the reagent for carrying out the following transformations:
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Which of the following compounds will undergo self-condensation in the presence of dilute NaOH solution?
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Reason (R): α, β-unsaturated carbonyl compounds are stabilised due to conjugation.
