The correct order of decreasing acidity of th | vedclass

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Question

(C) The acidic strength of carboxylic acids is determined by the stability of the carboxylate anion formed after the loss of a proton. $Electron-donat

Vedclass · Accepted Answer

$ HCOOH > CH_3COOH > (CH_3)_2CHCOOH > (CH_3)_3CCOOH $

Vedclass · Answer

(C) The acidic strength of carboxylic acids is determined by the stability of the carboxylate anion formed after the loss of a proton. $Electron-donating$ groups ($+I$ effect) destabilize the carboxylate anion by increasing the electron density on the oxygen atom,thereby decreasing the acidic strength. $Electron-withdrawing$ groups ($-I$ effect) stabilize the carboxylate anion,thereby increasing the acidic strength. The order of $+I$ effect of alkyl groups is: $-(CH_3)_3C > -(CH_3)_2CH > -CH_3 > -H$. Since the $+I$ effect increases in the order $H  CH_3COOH > (CH_3)_2CHCOOH > (CH_3)_3CCOOH$.

The correct order of decreasing acidity of the following aliphatic acids is $:-$

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