A) \[N{{a}_{2}}S{{O}_{4}}\]
B) \[MgHC{{O}_{3}}\]
C) \[NaCl\]
D) \[MgC{{l}_{2}}\]
Correct Answer: D
Solution :
Chlorides and sulphates of calcium and magnesium are responsible for permanent hardness of water.You need to login to perform this action.
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