The method that cannot be used for removing permanent hardness of water is?

adding sodium carbonate
distillation
adding caustic soda
boiling

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 4

Permanent hardness of water cannot be removed by simple physical methods like boiling, filtering and distillation.

4 views Answered 2022-09-01 13:21

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