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Gauransh
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Asked: 2021-09-21T06:09:34+00:00 In:

When soap is added to hard water, it reacts with salts calcium and magnesium to form

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Poll Results

0%(a) a coloured residue
0%(b) an oily surface
100%(c) a scum ( 6 voters )
0%(d) none of these
Based On 6 Votes

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    1. (c) a scum

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