Which of the following statements is not true | vedclass

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(D) Permanent hardness is the hardness that cannot be removed by boiling. It is usually caused by the presence of soluble calcium sulphate,magnesium s

Vedclass · Accepted Answer

Permanent hardness can be removed by boiling the water.

Vedclass · Answer

(D) Permanent hardness is the hardness that cannot be removed by boiling. It is usually caused by the presence of soluble calcium sulphate,magnesium sulphate,or chlorides and nitrates of $Ca$ and $Mg$ in the water,which do not precipitate out as the temperature increases. Therefore,the statement that permanent hardness can be removed by boiling is incorrect.

Which of the following statements is not true?

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