NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Aldehydes and Ketones
NEET · Chemistry · Aldehydes and Ketones
Given below are two statements; one is labelled as Assertion (A)...
Given below are two statements; one is labelled as Assertion (A) and the other is labelled as Reason(R).
Assertion: Mixture of benzaldehyde and acetaldehyde in hot alkaline medium gives cinnamaldehyde.
Reason: Benzaldehyde is strong electrophile than acetaldehyde.
In the light of the above statements, choose the most appropriate answer from the options given below :
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A).
- BBoth ((\mathrm{A})) and ((\mathrm{R})) are correct but ((\mathrm{R})) is not the correct explanation of (A).
- C(A) is correct but (R) is not correct.
- D(A) is not correct but (R) is correct.
Correct answer
C. (A) is correct but (R) is not correct.
Step-by-step solution
The assertion (A) states that a mixture of benzaldehyde and acetaldehyde in hot alkaline medium gives cinnamaldehyde. This is correct; under these conditions, a condensation reaction can occur that leads to the formation of cinnamaldehyde.
The reason (R) states that benzaldehyde is a stronger electrophile than acetaldehyde. This statement is somewhat misleading. While benzaldehyde can be considered an electrophile, in the context of the reaction being discussed, acetaldehyde is typically more reactive in nucleophilic addition reactions because it is more sterically accessible.
Given this analysis:
- (A) is correct.
- (R) is not entirely correct in the context of the explanation.
Thus, the most appropriate answer is: (3) (A) is correct but (R) is not correct.