Rank the following compounds in order of incr | vedclass

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(A) Acidic strength is directly proportional to the electron-withdrawing effect of the substituents attached to the benzene ring. Compound $2$ has thr

Vedclass · Accepted Answer

$2 < 1 < 3$

Vedclass · Answer

(A) Acidic strength is directly proportional to the electron-withdrawing effect of the substituents attached to the benzene ring. Compound $2$ has three electron-donating methyl groups $(-CH_3)$,which decrease the acidity. Compound $1$ has three electron-withdrawing chlorine atoms $(-Cl)$,which increase the acidity. Compound $3$ has three strongly electron-withdrawing nitro groups $(-NO_2)$,which increase the acidity significantly more than chlorine atoms. Therefore,the order of increasing acidity is $2 < 1 < 3$.

Rank the following compounds in order of increasing acidity (weakest acid first).

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