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Removing Permanent Hardness of Water is:

The method that cannot be used for removing permanent hardness of water is:

  1.  adding caustic soda
  2. distillation
  3. boiling
  4. adding sodium carbonate
Anurag Mishra Professor Asked on 5th October 2015 in Chemistry.
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    Answer: (3) Boiling

    The method that cannot be used for removing permanent hardness of water is boiling.

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    Anurag Mishra Professor Answered on 5th October 2015.
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