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>>Class 11
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>>Hydrogen
>>Structure and Properties of Water
>> $Water softening by Clark's process uses:$

Question

Water softening by Clark's process uses:

A

calcium bicarbonate

B

sodium bicarbonate

C

potash alum

D

calcium hydroxide

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Updated on : 2022-09-05

Solution

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Correct option is D)

Water softening by Clarke's process uses calcium hydroxide (lime). It removes temporary 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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