Correct order of reactivity in nucleophilic a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The reactivity of carbonyl compounds towards nucleophilic addition depends on the magnitude of the positive charge on the carbonyl carbon.Electron

Vedclass · Accepted Answer

$iii > i > ii > iv$

Vedclass · Answer

(A) The reactivity of carbonyl compounds towards nucleophilic addition depends on the magnitude of the positive charge on the carbonyl carbon.Electron-withdrawing groups $(-NO_2)$ increase the electrophilicity of the carbonyl carbon,thereby increasing reactivity.Electron-donating groups $(-CH_3)$ decrease the electrophilicity,thereby decreasing reactivity.Steric hindrance also plays a role; ketones $(iv)$ are less reactive than aldehydes due to steric and electronic factors.Comparing the compounds:(iii) $p$-Nitrobenzaldehyde: $-NO_2$ is a strong electron-withdrawing group,making it the most reactive.$(i)$ Benzaldehyde: No substituent.(ii) $p$-Methylbenzaldehyde: $-CH_3$ is an electron-donating group,making it less reactive than benzaldehyde.(iv) Acetophenone: It is a ketone,which is less reactive than aldehydes due to the $+I$ effect of the methyl group and steric hindrance.The order is: $(iii) > (i) > (ii) > (iv)$.

Correct order of reactivity in nucleophilic addition reaction is:
$(i)$ Benzaldehyde
(ii) $p$-Methylbenzaldehyde
(iii) $p$-Nitrobenzaldehyde
(iv) Acetophenone

Similar Questions

Which of the following is the correct order of reactivity of carbonyl compounds towards nucleophilic addition reactions?

$P$ is an optically active compound with molecular formula $C_6H_{12}O$. When $P$ is treated with $2,4-$dinitrophenylhydrazine,it gives a positive test. However,in the presence of Tollens reagent,$P$ gives a negative test. Predict the structure of $P$.

Which of the following compounds reacts with $50\%$ sodium hydroxide solution to give the corresponding alcohol and acid?

Cannizzaro reaction between formaldehyde molecules involves the formation of

What is the major product of the following reaction?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Correct order of reactivity in nucleophilic addition reaction is:$(i)$ Benzaldehyde(ii) $p$-Methylbenzaldehyde(iii) $p$-Nitrobenzaldehyde(iv) Acetophenone