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Hard water forms scum with soap, due to ...

Hard water forms scum with soap, due to the presence of

A

`CH_(3) COOH`

B

`NaOH`

C

`Ca(OH) _(2)`

D

`CaCl _(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Hard water contain magnesium and calcium mineral salts, This react with soap to form an insoluble precipitate with soap called scum. Hence, `CaCl_(2)` is the correct option,
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