mgso4 is the permanent hardness causes salts (true or false)
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Permanent hardness responsible salts are CaCl2, MgCl2, CaSO4, MgSO4, FeSO4, Al2(SO4)3. Permanent Hardness cannot be removed by boiling but it can be removed by the use of chemical agents.
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true yyyyyyyyyyyyyyyeeeeeeeeeeeeeeesssssßssßssssssssssssssss
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