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Properties of Water

Which of the ...

Question

Which of the following cause alkalinity as well as hardness in natural water?

C a C O_{3}

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C a (H C O_{3})_{2}

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M g C O_{3}

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All of the above

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Solution

The correct option is D All of the above
Calcium carbonate, bicarbonate, Magnesium carbonate, all the above salts cause the hardness of water because they dissolve in the form of ions in water and do not allow to form lather with soap.

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