Match the following:
List-$I$ (Acid) List-$II$ ($K_a$ - Ionization Constant)
$A$. $HCN$ $I$. $6.8 \times 10^{-4}$
$B$. $H_2C_2O_4$ $II$. $8.9 \times 10^{-8}$
$C$. $H_2S$ $III$. $4.9 \times 10^{-10}$
$D$. Niacin $IV$. $5.6 \times 10^{-2}$
$V$. $1.5 \times 10^{-5}$

The correct match is:

  • A
    $A-I, B-II, C-IV, D-V$
  • B
    $A-V, B-II, C-III, D-IV$
  • C
    $A-II, B-III, C-IV, D-V$
  • D
    $A-III, B-IV, C-II, D-V$

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