A) \[N{{a}^{-}}\]and\[{{K}^{+}}\]
B) \[C{{a}^{2+}}\]and\[M{{g}^{2+}}\]
C) \[C{{a}^{2+}}\] and\[{{K}^{+}}\]
D) \[C{{a}^{2+}}\]and\[N{{a}^{+}}\]
Correct Answer: B
Solution :
The hardness of water is due to presence of carbonates, bicarbonate, sulphate, nitrates and chlorides of Mg and captions.
You need to login to perform this action.
You will be redirected in
3 sec
