Treatment with lime can remove hardness of water caused by:

C a C l_{2}

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C a S O_{4}

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

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C a C O_{3}

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Solution

The correct option is C $C a (H C O_{3})_{2}$
Clark's process is a method for the removal hardness of the water in this process slaked lime (lime water), $C a (O H)_{2}$ is added to temporary hard water.
Insoluble calcium carbonate precipitates out and no longer produce hardness.

$C a (H C O_{3})_{2} + C a (O H)_{2} \to 2 C a C O_{3} + 2 H_{2} O$

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Similar questions

Temporary hardness can be removed by mixing water with slaked lime, this process is known as softening of water.

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

C a C O_{3}

10

0.56

(C a O)

C a C O_{3}

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