Social Sciences, asked by amantanejaadv3935, 1 year ago

To remove permanent hardness of water what should be added?
a) Alum.
b) Lime.
c) Potassium permanganate.
d) Sodium carbonate.

Answers

Answered by megagamer13501
0
d ) sodium carbonate
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Answered by purvirajput
0
d) sodium carbonate
I hope this will help u:)

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