The correct order of acidic strength of the f | vedclass

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(C) The acidic strength of phenols depends on the nature of the substituent attached to the benzene ring.Electron-withdrawing groups $(EWG)$ like $-NO

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$D > C > A > B$

Vedclass · Answer

(C) The acidic strength of phenols depends on the nature of the substituent attached to the benzene ring.Electron-withdrawing groups $(EWG)$ like $-NO_2$ increase acidity by stabilizing the phenoxide ion through $-I$ and $-M$ effects.Electron-donating groups $(EDG)$ like $-CH_3$ (in Cresol) decrease acidity by destabilizing the phenoxide ion through $+I$ and hyperconjugation effects.$1$. $p-$Nitrophenol $(D)$: The $-NO_2$ group at the para position exerts both $-I$ and $-M$ effects,making it the most acidic.$2$. $m-$Nitrophenol $(C)$: The $-NO_2$ group at the meta position exerts only the $-I$ effect,making it less acidic than $p-$Nitrophenol but more acidic than Phenol.$3$. Phenol $(A)$: The reference compound.$4$. Cresol $(B)$: The $-CH_3$ group is an electron-donating group,which decreases the acidic strength compared to Phenol.Therefore,the correct order of acidic strength is $D > C > A > B$.

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

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