Which of the following is strongly acidic?

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

Question

(C) The acidity of phenols is due to the greater resonance stabilization of the phenoxide ion relative to phenol. Electron withdrawing groups $(EWG)$

Vedclass · Accepted Answer

$p$-nitrophenol

Vedclass · Answer

(C) The acidity of phenols is due to the greater resonance stabilization of the phenoxide ion relative to phenol. Electron withdrawing groups $(EWG)$ like $-NO_{2}$ stabilize the phenoxide ion by dispersing the negative charge,which increases the acidity of phenols.Conversely,electron donating groups $(EDG)$ like alkyl groups destabilize the phenoxide ion by intensifying the negative charge,which decreases the acidic strength of phenols.Since the methyl group has a $+I$ effect,which is stronger at the $o$-position than at the $p$-position (as the $+I$ effect decreases with distance),$o$-cresol is a weaker acid than $p$-cresol.Therefore,the order of acidic strength is: $p$-nitrophenol $>$ phenol $>$ $p$-cresol $>$ $o$-cresol.

Similar Questions

Which one of the following is most reactive towards electrophilic attack?

Which among the following has the highest melting point?

Which among the following phenolic compounds is most acidic in nature?

The major product of the following reaction sequence is:
$C_6H_5OH \xrightarrow[(ii) NaOH, (iii) H^+]{(i) CHCl_3, NaOH(aq)} ?$

The following reaction is known as:
$Phenol + HCl + HCN \xrightarrow{Anhyd. ZnCl_2} Salicylaldehyde$

Vedclass Test Series

Exam Paper Generator

Online Exam Module