Among the following compounds,the order of de | vedclass

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

Question

(A) The reactivity towards electrophilic substitution $(ESR)$ depends on the electron density in the benzene ring. Electron donating groups $(EDG)$ in

Vedclass · Accepted Answer

$III > I > II > IV$

Vedclass · Answer

(A) The reactivity towards electrophilic substitution $(ESR)$ depends on the electron density in the benzene ring. Electron donating groups $(EDG)$ increase the electron density and thus increase reactivity,while electron withdrawing groups $(EWG)$ decrease the electron density and decrease reactivity. - $(III)$ Anisole $(-OCH_3)$: The $-OCH_3$ group is a strong $EDG$ due to its $+M$ effect. - $(I)$ Toluene $(-CH_3)$: The $-CH_3$ group is a weak $EDG$ due to $+I$ and hyperconjugation effects. - $(II)$ Benzene: This is the reference compound with no substituents. - $(IV)$ Trifluoromethylbenzene $(-CF_3)$: The $-CF_3$ group is a strong $EWG$ due to its $-I$ effect. Therefore,the order of reactivity is: $(III) > (I) > (II) > (IV)$.

Among the following compounds,the order of decreasing reactivity towards electrophilic substitution is:

Similar Questions

Which of the following compounds would exhibit aromatic character?

Draw the structure of the compound having molecular formula $C_7H_8$ and determine the number of $\sigma$ and $\pi$ bonds.

How will you convert benzene into:
$I$. $p$-nitrotoluene
$II$. acetophenone

Which one of the following gives a sooty flame on combustion?

$C_6H_6 + 3O_3$ $\longrightarrow X \stackrel{Zn / H_2O}{}$ ${\longrightarrow} Y$; $X$ and $Y$ are respectively

Vedclass Test Series

Exam Paper Generator

Online Exam Module