Question

Find the correct structure of reactant (X) from following : ?

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

An aldol condensation is a condensation reaction in which an enol or an enolate ion reacts with a carbonyl compound to form a $\beta$-hydroxyaldehyde or $\beta$-hydroxyketone, followed by dehydration to an $\alpha ,\beta$-unsaturated aldehyde.
Aldol condensation occurs in aldehydes having $\alpha$-hydrogen.
the reaction is as follows:
Hence the correct option is (b).