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1. |
Hardness of water is estimated by simple titration with which compound?a) Na2(EDTA)b) Fe(EDTA)c) Mg(EDTA)d) Co(EDT |
A. | Na2(EDTA) |
B. | Fe(EDTA) |
C. | Mg(EDTA) |
D. | Co(EDTA) |
Answer» B. Fe(EDTA) | |