Water obtained by purification with organic ion exchange resins is:

  • A
    Pure water
  • B
    Free from only $Ca^{2+}$ and $Mg^{2+}$ ions
  • C
    Free from $HCO_3^-$,$SO_4^{2-}$ and $Cl^-$ ions only
  • D
    Free from all soluble mineral salts

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