A) Pure water
B) Free from only \[C{{a}^{2+}}\], \[M{{g}^{2+}}\] ions
C) Free from \[HCO_{3}^{-},\ SO_{4}^{2-}\] and \[C{{l}^{-}}\]ions only
D) None of these
Correct Answer: D
Solution :
Water obtained from organic ion-exchange resins is free from all ionic impurities.
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