A) Washing soda
B) Soap
C) Slaked lime
D) Boiling
Correct Answer: B
Solution :
Washing soda removes\[C{{a}^{2+}}\]ions effectively but not\[M{{g}^{2+}}\]ions, slaked lime and boiling remove temporary hardness while soap can effectively remove all types of hardness.You need to login to perform this action.
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