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(C) The acidity of phenols is determined by the stability of the phenoxide ion formed after the loss of a proton. Electron-withdrawing groups $(EWG)$

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$p-$Nitrophenol

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(C) The acidity of phenols is determined by the stability of the phenoxide ion formed after the loss of a proton. Electron-withdrawing groups $(EWG)$ increase acidity by stabilizing the negative charge on the phenoxide ion through inductive and resonance effects. Electron-donating groups $(EDG)$ decrease acidity by destabilizing the phenoxide ion. Comparing the substituents: $1$. $-CH_3$ (in $p-$Cresol) is an $EDG$ (+$I$ effect). $2$. $-Cl$ (in $p-$Chlorophenol) is an $EWG$ (-$I$ effect). $3$. $-NO_2$ (in $p-$Nitrophenol) is a strong $EWG$ (-$I$ and -$M$ effects). $4$. $-NH_2$ (in $p-$Aminophenol) is an $EDG$ (+$M$ effect). Since the $-NO_2$ group provides the strongest electron-withdrawing effect,$p-$Nitrophenol is the most acidic among the given compounds.

Which of the following compounds is the most acidic?

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The acidity of the following compounds follows the order:
$I$: Phenol
$II$: $p$-Methoxyphenol
$III$: $p$-Nitrophenol
$IV$: $m$-Nitrophenol

Arrange the following compounds in decreasing order of their acidic strength.

Provide the alkylation and acylation reactions of anisole.

Which of the following compounds is the most acidic?

The oxidation of phenol with chromic acid gives

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Which of the following compounds is the most acidic?

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The acidity of the following compounds follows the order:$I$: Phenol$II$: $p$-Methoxyphenol$III$: $p$-Nitrophenol$IV$: $m$-Nitrophenol

Arrange the following compounds in decreasing order of their acidic strength.

Provide the alkylation and acylation reactions of anisole.

Which of the following compounds is the most acidic?

The oxidation of phenol with chromic acid gives

Vedclass Test Series

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The acidity of the following compounds follows the order:
$I$: Phenol
$II$: $p$-Methoxyphenol
$III$: $p$-Nitrophenol
$IV$: $m$-Nitrophenol