The acid having the highest pK_a value among | vedclass

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(B) The $pK_a$ value is inversely proportional to the acid strength. $A$ weaker acid has a higher $pK_a$ value.Comparing the acidity of the given acid

Vedclass · Accepted Answer

$CH_3COOH$

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(B) The $pK_a$ value is inversely proportional to the acid strength. $A$ weaker acid has a higher $pK_a$ value.Comparing the acidity of the given acids:$1$. $FCH_2COOH$ (Strongest due to the strong $-I$ effect of $F$)$2$. $ClCH_2COOH$ (Stronger than $CH_3COOH$ due to $-I$ effect of $Cl$)$3$. $HCOOH$ (Stronger than $CH_3COOH$ because $CH_3$ group has a $+I$ effect)$4$. $CH_3COOH$ (Weakest acid among the given options due to the electron-donating $+I$ effect of the $CH_3$ group).Since $CH_3COOH$ is the weakest acid,it has the highest $pK_a$ value.

The acid having the highest $pK_a$ value among the following is

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