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temporary hardness
GATE Civil Engineering · Water Treatment · 1999-2022
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All concepts →2022 PYQ
In a water sample, the concentrations of Ca 2+ , Mg 2+ and HCO$$_3^ - $$ are 100 mg/L, 36 mg/L and 122 mg/L, respectively. The atomic masses of various elements are : Ca = 40, Mg =...
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1999 PYQ
Temporary hardness in water is caused by the presence of
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