Permanent hardness of water can be removed by$? – McqOptions

MCQOPTIONS

1.	Permanent hardness of water can be removed by$?
A.	Boiling
B.	Adding Ca(OH)‚Äö√á√á
C.	Boiling it with Na‚Äö√á√áCO‚Äö√á√â
D.	None of these
Answer» D. None of these

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