question_answer

Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as

Assertion: 2, 2-dimethyl   propanal   give Cannizaro reaction with concentrated \[NaOH\]. Reason: Cannizaro is a disproportionate reaction.

A) If both Assertion: and Reason: are true and the Reason: is the correct explanation of the Assertion:

B) If both Assertion: and Reason: are true but the Reason: is not the correct explanation of the Assertion:

C) If Assertion: is true but Reason: is false

D) If both Assertion: and Reason: are false

Correct Answer: B

Solution :

2, 2-dimethyl propanal \[[(C{{H}_{3}})C{{(C{{H}_{3}})}_{2}}CHO]\] has no \[\alpha -H\] atom, thus, readily undergoes Cannizaro reaction, as The reactions in which same compound undergoes oxidation and reduction, are called disproportionation reactions. Hence, Cannizaro reaction is a disproportionation reaction.