जल की अस्थायी कठोरता के लि� – McqOptions

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1.	जल की अस्थायी कठोरता के लिए कौन सा यौगिक उत्तरदायी है -
A.	Mg(HCO3)2
B.	CaSO4
C.	CaCO3
Answer» B. CaSO4

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