Hardness of water is due to the pair if ions:A. `Ca^(2+) and K^(+)`B. `Mg^(2+) and K^(+)`C. `Ca^(2+) and Mg^(2+)`D. `Ba^(2+) and Zn^(2+)`

Hardness of water is due to the pair if ions:A. `Ca^(2+) and K^(+)`B.

1.	Hardness of water is due to the pair if ions:A. `Ca^(2+) and K^(+)`B. `Mg^(2+) and K^(+)`C. `Ca^(2+) and Mg^(2+)`D. `Ba^(2+) and Zn^(2+)`
Answer» (c ) `Ca^(2+) and Mg^(2+)` ions cause the hardness of water

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Hardness of water is due to the pair if ions:A. `Ca^(2+) and K^(+)`B. `Mg^(2+) and K^(+)`C. `Ca^(2+) and Mg^(2+)`D. `Ba^(2+) and Zn^(2+)`

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