The increasing order of the reactivity of the | 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 aromatic substitution depends on the electron density of the benzene ring. Electron-don

Vedclass · Accepted Answer

$III < I < II$

Vedclass · Answer

(A) The reactivity of aromatic compounds towards electrophilic aromatic substitution depends on the electron density of the benzene ring. Electron-donating groups increase reactivity,while electron-withdrawing groups decrease it.$I$: Chlorobenzene ($Cl$ is a deactivating group due to its strong $-I$ effect,though it is ortho/para directing).$II$: Toluene ($-CH_3$ is an activating group due to $+I$ and hyperconjugation).$III$: Acetophenone ($-COCH_3$ is a strongly deactivating group due to $-I$ and $-M$ effects).Comparing the effects:$II$ (activating) > $I$ (weakly deactivating) > $III$ (strongly deactivating).Therefore,the increasing order of reactivity is $III < I < II$.

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

Similar Questions

The heat of hydrogenation of one double bond in cyclohexene is $28.6 \, kcal \, mol^{-1}$ and the heat of hydrogenation of benzene to cyclohexane is $50 \, kcal \, mol^{-1}$. The resonance stabilization energy of benzene is ...... $kcal \, mol^{-1}$.

Which of the following compounds is most reactive to an aqueous solution of sodium carbonate $?$ (The structures correspond to cyclic hydrocarbons with varying degrees of unsaturation).

Identify the reaction shown in the following chemical equation: $C_6H_6 + CH_3Cl \xrightarrow{\text{Anhydrous } AlCl_3} C_6H_5CH_3 + HCl$

Correctly matched products are

The number of sigma $(\sigma)$ bonds and pi $(\pi)$ bonds in benzene are respectively .......

Vedclass Test Series

Exam Paper Generator

Online Exam Module