Which of the following is not responsible for causing permanent hardne – McqOptions

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1.	Which of the following is not responsible for causing permanent hardness of water?%!
A.	Ca(HCO‚Äö√á√â)‚Äö√á√á
B.	CaCl‚Äö√á√á
C.	MgCl‚Äö√á√á
D.	None of these
Answer» B. CaCl‚Äö√á√á

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