The exhausted permutit is regenerated by treating sodium hydroxide solution in Clark's method for removing permanent hardness.
True
False
A
True
B
False
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The soluble calcium and magnesium salt thus formed are washed away by water and the regenerated permutit. can be used again. 2) This is very cheap process since during the process only sodium chloride is consumed which is quite cheap. 3) It can be used to remove both temporary and permanent hardness completely.
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The exhausted permutit is regenerated by treating sodium hydroxide solution in Clark's method for removing permanent hardness.
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