MCQ
Among the following acids which has the lowest $pKa$ value
  • A
    $C{H_3}COOH$
  • $HCOOH$
  • C
    ${(C{H_3})_2}CH - COOH$
  • D
    $C{H_3}C{H_2}COOH$

Answer

Correct option: B.
$HCOOH$
b
(b)${K_a} \propto \frac{1}{{p{K_a}}}$; The value of ${K_a}$ is highest for $HCOOH$.

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