

MCQOPTIONS
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1. |
*/*_Which of the following is not responsible for causing permanent hardness of water?? |
A. | Ca(HCO‚ÇÉ)‚ÇÇ |
B. | CaCl‚ÇÇ |
C. | MgCl‚ÇÇ |
D. | None of these |
Answer» B. CaCl‚Äö√á√á | |