1.

The drinking water can have the magnesium limit about ____________(a) 10-150ppm(b) 20-150ppm(c) 30-150ppm(d) 40-150ppmThis question was addressed to me in exam.My doubt is from Estimation of Hardness topic in division Water of Applied Chemistry

Answer»

The correct CHOICE is (C) 30-150ppm

The best I can EXPLAIN: The drinking water can have the magnesium LIMIT about 30-150ppm. The CALCIUM in the drinking water can be about 75-200ppm.



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