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Ankita Sahoo posted an Question
November 29, 2020 • 17:01 pm 1 points
  • IIT JAM
  • Geology (GG)

Hardness of groundwater is determined by

hardness of groundwater is determined by (a)moh's hardness scale (b) concentration of calcium ion (c)bernoulli's equation (d)Darey's law

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    Sajan sarthak Best Answer

    Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals. General guidelines for classification of waters are: 0 to 60 mg/L (milligrams per liter) as calcium carbonate is classified as soft; 61 to 120 mg/L as moderately hard; 121 to 180 mg/L as hard; and more than 180 mg/L as very hard. BELOW picture you can see hard calcium stone buildup in side a iron pipe

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