Permanent hardness of water may be removed by addition of?

Alum
Sodium carbonate
Lime
Potassium Permangante

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 2

Hardness can be removed by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column.

5 views Answered 2022-09-01 13:21

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