Question

Which of the following is condensation reaction?

• A. $C{H}_3-\stackrel{O}{\stackrel{||}{C}}-H+C{H}_{3}CHO\underset{NaOH}{\overset{aq}{\to }}C{H}_3-\stackrel{OH}{\stackrel{|}{CH}}-C{H}_{2}CHO$
• B. $ph-\underset{o}{\underset{||}{CH}}+H-\underset{O}{\underset{||}{C}}-H\underset{KCN}{\overset{Aq.alc}{\to }}\underset{OH}{\underset{|}{H-CH}}-\underset{O}{\underset{||}{C}}-ph$
• C.
• D. None of these

Answer 1

The correct option is D

None of these

Condensation reaction : Two same or different organic reactants unite to give a product with the elimination of another simple molecule.

So, if we look in (a) and (b), two different organic reactants are uniting to give a product while in (c) there is isomerisation reaction where it is converting from trans to cis.