The permanent hardness in water is due to the presence of – McqOptions

MCQOPTIONS

1.	The permanent hardness in water is due to the presence of
A.	Sulfates, Chlorides
B.	Sulfates, chlorides, nitrates
C.	Carbonates and bicarbonates
D.	Sulfates and carbonates
Answer» C. Carbonates and bicarbonates

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