The increasing order of reactivity of the fol | vedclass

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

Question

(A) The reactivity of aromatic compounds towards electrophilic substitution depends on the electron density of the benzene ring. Electron-donating gro

Vedclass · Accepted Answer

$D < A < C < B$

Vedclass · Answer

(A) The reactivity of aromatic compounds towards electrophilic substitution depends on the electron density of the benzene ring. Electron-donating groups $(EDG)$ increase reactivity,while electron-withdrawing groups $(EWG)$ decrease it.$A$: Chlorobenzene ($-Cl$ group has $-I$ effect and $+R$ effect; overall,it is deactivating but ortho/para directing).$B$: Anisole ($-OMe$ group has strong $+R$ effect,making it highly activating).$C$: Toluene ($-Me$ group has $+I$ and hyperconjugation effect,making it activating).$D$: Benzonitrile ($-CN$ group has strong $-R$ and $-I$ effects,making it strongly deactivating).Comparing the effects:$B$ (strong $+R$) > $C$ (hyperconjugation) > $A$ (deactivating $-I > +R$) > $D$ (strong $-R$ and $-I$).Thus,the increasing order of reactivity is $D < A < C < B$.

The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is:

Similar Questions

$Y$ in the above sequence of reaction is

Which of the following will show aromatic behaviour?

Aromatisation of $n$-heptane by passing over $(Al_2O_3 + Cr_2O_3)$ catalyst at $773 \ K$ gives:

Total number of aromatic compounds among the following compounds is:

What are $X$ and $Y$ respectively in the following reaction sequence?

Vedclass Test Series

Exam Paper Generator

Online Exam Module