A) \[{{H}^{+}}\] ions
B) \[{{H}^{+}}\] and \[C{{a}^{2+}}\] ions
C) \[O{{H}^{-}}\] and \[M{{g}^{2+}}\]ions
D) \[C{{a}^{2+}}\] and \[M{{g}^{2+}}\] ions
Correct Answer: D
Solution :
When zeolite is treated with hard water, the sodium ions are exchanged with \[M{{g}^{2+}}\] and \[C{{a}^{2+}}\] ions.
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