question_answer

Among the aldehydes and ketones, "the size of alkyl group is inversely proportional to their reactivity". Cannizzaro reaction is an example of disproportionation reaction i.e., self oxidation-reduction. Which of the following will undergo Cannizaro reaction?

A) Benzaldehyde   

B) Acetaldehyde         

C) Acetone                       

D) Pentagon

Correct Answer: A

Solution :

Aldehyde having no a-hydrogen undergoes Cannizzaro reaction in presence of base as follows Here, oxidation as well as self reduction takes place.