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The organic matter in drinking water must be about _________(a) 0.2-1.0ppm(b) 1.0-2.0ppm(c) 2.0-3.0ppm(d) 3.0-4.0ppmThe question was posed to me by my school principal while I was bunking the class.I want to ask this question from Estimation of Hardness in division Water of Applied Chemistry |
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Answer» Right answer is (a) 0.2-1.0ppm |
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