MCQ
Which of the following has highest $pK_a$ value
  • A
    $Br-CH_2-CH_2-COOH$
  • $CH_3-CH_2-COOH$
  • C
    $\begin{array}{*{20}{c}}
    {C{H_3} - CH - COOH}\\
    {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\\
    {Br\,\,\,\,\,\,\,\,\,\,\,}
    \end{array}$
  • D
    $\begin{array}{*{20}{c}}
    {Br\,\,\,}\\
    {|\,\,\,\,\,\,}\\
    {C{H_3} - C - COOH}\\
    {|\,\,\,\,\,\,\,}\\
    {Br\,\,\,\,\,}
    \end{array}$

Answer

Correct option: B.
$CH_3-CH_2-COOH$
b

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