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1. |
Which of the following is not a reaction of wet process method of production of phosphoric acid? |
A. | Ca3 (PO4)2 + 3H2SO4 + 6H2O → 2H3PO4 + 3(CaSO4·2H2O) |
B. | 6HF + SiO2 → H2 SiF6 + 2H2O |
C. | Ca3 (PO4)2 + 6HCl + 6H2O → 2H3PO4 + 3CaCl2 |
D. | P2 O5 + 3H2O → 2H3PO4 |
Answer» E. | |