Civil Engineering > GATE 2025 SET-1 > Water Quality
MgCl2 and CaSO4 salts are added to 1 litre of distilled deionized water and mixed until completely dissolved. Total Dissolved Solids (TDS) concentration is 500 mg/l and Total Hardness (TH) is 400 mg/l (as CaCO3). The amounts of MgCl2 and CaSO4 added are calculated (rounded off to the nearest integer). Which of the following options is/are true:
Atomic weights: Ca(40), Mg(24), S(32) O(16), Cl(35.5), C(12)
Atomic weights: Ca(40), Mg(24), S(32) O(16), Cl(35.5), C(12)
Correct : a
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