Match List-$I$ with List-$II$ :
List-$I$ (Species) List-$II$ (Maximum allowed concentration in ppm in drinking water)
$A$. $F^{-}$ $I$. $< 50 \, ppm$
$B$. $SO_{4}^{2-}$ $II$. $< 5 \, ppm$
$C$. $NO_{3}^{-}$ $III$. $< 2 \, ppm$
$D$. $Zn$ $IV$. $< 500 \, ppm$

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

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