The correct order of acid strength of the fol | vedclass

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

Vedclass · Accepted Answer

$D > C > A > B$

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(B) 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,while electron-donating groups $(EDG)$ decrease acidity.$1$. $p$-Nitrophenol $(D)$ has a $-NO_2$ group at the para position,which exerts both $-I$ and $-M$ effects,strongly stabilizing the phenoxide ion.$2$. $m$-Nitrophenol $(C)$ has a $-NO_2$ group at the meta position,which exerts only the $-I$ effect,providing moderate stabilization.$3$. Phenol $(A)$ has no substituent.$4$. $p$-Cresol $(B)$ has a $-CH_3$ group at the para position,which exerts $+I$ and hyperconjugation $(HC)$ effects,destabilizing the phenoxide ion.Therefore,the correct order of acid strength is $D > C > A > B$.

The correct order of acid strength of the following compounds is:
$A$. Phenol
$B$. $p$-Cresol
$C$. $m$-Nitrophenol
$D$. $p$-Nitrophenol

Similar Questions

Arrange the following compounds in increasing order of acidity and provide a suitable explanation: $o-\text{cresol}$,$\text{phenol}$,$o-\text{nitrophenol}$.

Identify the reactant $x$ in the following chemical reaction:
$Phenol + (x) \xrightarrow[(2) H^+]{(1) NaOH} Salicylaldehyde$

The order of stability of the conjugate base of the given acids is:
$(i)$ Phenol
(ii) $4-$Hydroxypyridine
(iii) Cyclohexanol

Which of the following is the correct decreasing order of acidic strength for the compounds listed below?
$I$: $p$-chlorophenol
$II$: $p$-Cresol
$III$: $p$-nitrophenol
$IV$: $p$-methoxyphenol

The major product of the following reaction is:

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The correct order of acid strength of the following compounds is:$A$. Phenol$B$. $p$-Cresol$C$. $m$-Nitrophenol$D$. $p$-Nitrophenol