Question:
Demineralised water can be obtained by using
Demineralised water can be obtained by using
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Demineralised = No minerals. Ion exchange resins are the "gold standard" for total mineral removal.
Updated On: Jul 4, 2026
- Clark's method
- Permutit method
- Calgon's method
- Ion exchange resin method
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Demineralisation refers to the complete removal of all dissolved inorganic salts (cations and anions) from water.
Step 2: Meaning
Methods like Clark's or Calgon's primarily target hardness-causing ions like Calcium and Magnesium but leave other minerals behind.
Step 3: Analysis
The Ion exchange resin method uses cation exchangers to remove metal ions and anion exchangers to remove acid radicals, resulting in water free of all mineral salts.
Step 4: Conclusion
Therefore, the ion exchange resin method is the only process among the choices that produces truly demineralised water. Final Answer: (D)
Demineralisation refers to the complete removal of all dissolved inorganic salts (cations and anions) from water.
Step 2: Meaning
Methods like Clark's or Calgon's primarily target hardness-causing ions like Calcium and Magnesium but leave other minerals behind.
Step 3: Analysis
The Ion exchange resin method uses cation exchangers to remove metal ions and anion exchangers to remove acid radicals, resulting in water free of all mineral salts.
Step 4: Conclusion
Therefore, the ion exchange resin method is the only process among the choices that produces truly demineralised water. Final Answer: (D)
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