A) \[C{{a}^{2+}}\]and \[{{K}^{+}}\]
B) \[C{{a}^{2+}}\]and\[M{{g}^{2+}}\]
C) \[N{{a}^{+}}\]and\[{{K}^{+}}\]
D) \[C{{a}^{2+}}\]and\[N{{a}^{+}}\]
Correct Answer: B
Solution :
Hardness of\[{{H}_{2}}O\] is due to the presence of bicarbonates, chlorides and sulphates of Ca and Mg ions. Hence, the correct option is [b].You need to login to perform this action.
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