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- Which of the following is true about soft water ? Option: 1 It contains calcium salt and not magnesium salt <div class='qna-o
Which of the following is true about soft water ?
Option: 1
It contains calcium salt and not magnesium salt
Option: 2
It contains magnesium salts and not calcium salts
Option: 3
It forms a lather with soap
Option: 4
It is relatively unsafe to drink
Answers (1)
Soft water is free of calcium and magnesium salts that prevent the formation of lather with soap
Therefore, option(3) is correct.
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