The correct order of strengths of the carboxy | vedclass

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(B) The acidity of carboxylic acids is determined by the stability of the carboxylate anion formed after the loss of a proton. Electron-withdrawing gr

Vedclass · Accepted Answer

$II > III > I$

Vedclass · Answer

(B) The acidity of carboxylic acids is determined by the stability of the carboxylate anion formed after the loss of a proton. Electron-withdrawing groups ($-I$ effect) stabilize the carboxylate anion and increase acidity. In compound $I$,there is no electron-withdrawing group. In compound $II$,the oxygen atom is at the $\beta$-position relative to the $-COOH$ group. In compound $III$,the oxygen atom is at the $\gamma$-position relative to the $-COOH$ group. The $-I$ effect decreases with distance. Since the oxygen atom in $II$ is closer to the $-COOH$ group than in $III$,the $-I$ effect is stronger in $II$ than in $III$. Therefore,the order of acidity is $II > III > I$.

The correct order of strengths of the carboxylic acids is:

Similar Questions

The increasing order of acidic strength among the following compounds is
$I.$ Benzoic acid
$II.$ $4-$nitrobenzoic acid
$III.$ $3, 4-$dinitrobenzoic acid
$IV.$ $4-$methoxybenzoic acid

Identify the product $(P)$ in the following reaction:

The strongest acid amongst the following compounds is:

Identify the major product $P$ in the following reaction:
$CH_2=C(OLi)-CH=C(OLi)OEt \xrightarrow[(ii) H_3O^+]{(i) CH_3CH_2I / THF} P$

Which of the following carboxylic acids will undergo decarboxylation most easily?

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