The decreasing order of acidic strength of di | vedclass

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

Question

(A) The acidic strength of $-OH$ groups depends on the stability of the conjugate base formed after the loss of a proton. $1$. The group labeled $w$ i

Vedclass · Accepted Answer

$w > x > y > z$

Vedclass · Answer

(A) The acidic strength of $-OH$ groups depends on the stability of the conjugate base formed after the loss of a proton. $1$. The group labeled $w$ is a phenolic $-OH$ group,which is significantly more acidic than alcoholic $-OH$ groups due to the resonance stabilization of the phenoxide ion. $2$. Among the remaining alcoholic groups $(x, y, z)$,the acidity is influenced by the inductive effect $(-I)$ of the phenyl ring. $3$. Group $x$ is directly attached to the phenyl ring,experiencing the strongest $-I$ effect of the ring. $4$. Group $y$ is attached to a carbon adjacent to the phenyl ring,experiencing a weaker $-I$ effect and some $+I$ effect from the alkyl chain. $5$. Group $z$ is further away,experiencing the least $-I$ effect and more $+I$ effect from the alkyl chain,making it the least acidic. Thus,the decreasing order of acidic strength is $w > x > y > z$.

The decreasing order of acidic strength of different $(-OH)$ groups is:

Similar Questions

Aspirin is obtained by the reaction of $CH_3COCl$ with

Give two reactions that show the acidic nature of phenol. Compare the acidity of phenol with that of ethanol.

Ortho and para nitrophenols are more acidic than phenol. Draw the resonance structures of the corresponding phenoxide ions.

The order of reactivity of phenol $(I)$,nitrobenzene $(II)$,and benzene $(III)$ towards nitration is:

$Phenol$ $\xrightarrow[Distillation]{Zn} A$ $\xrightarrow[Conc. H_2SO_4]{Conc. HNO_3} B$ $\xrightarrow[NaOH]{Zn} C$
In the above reaction,$A$,$B$,and $C$ are the following compounds:

Vedclass Test Series

Exam Paper Generator

Online Exam Module