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GATE CE 2022 Set 1 — Question 43

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MCQ+2 / -0.67MediumpH, Turbidity, Hardness & AlkalinityWater QualityEnvironmental Engineering

Environmental Engineering → Water Quality → pH, Turbidity, Hardness & Alkalinity

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Question

In a water sample, the concentrations of Ca2+Ca^{2+}, Mg2+Mg^{2+} and HCO3−HCO_3^- are 100 mg/L100\text{ mg/L}, 36 mg/L36\text{ mg/L} and 122 mg/L122\text{ mg/L}, respectively. The atomic masses of various elements are: Ca=40,Mg=24,H=1,C=12,O=16Ca = 40, Mg = 24, H = 1, C = 12, O = 16.
The total hardness and the temporary hardness in the water sample (in mg/L as CaCO3\text{mg/L as } CaCO_3) will be
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