Flame Institute SCF 18 Near Chawla Lights Phase 7 Mohali Chandigarh 9888949978
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  • Flame SCF 18 Near Chawla Lights Ph-7 Mohali 9888949978

75. The degree of hardness of water is usually expressed in terms of

a. ppm by weight of MgSO4

b. g/L of CaCO and MgCO3

c. ppm by weight of CaCO 3 irrespective of whether it is actually present

d. ppm of CaCO3  actully present in water

Ans. c

5/5 - (1 vote)

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