Question

What is the level of Calcium carbonate for a moderately hard water?

a.

Hardness >150 ppm

b.

Hardness= 50 ppm

c.

Hardness is in between 50-100 ppm

d.

Hardness <50 ppm

Answer: (c).Hardness is in between 50-100 ppm

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Q. What is the level of Calcium carbonate for a moderately hard water?

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