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 → 2H3PO4I got this question by my school principal while I was bunking the class.This is a very interesting question from Inorganic Chemical in division Inorganic Chemical Industries of Chemical Technology

Which of the following is not a reaction of wet process method of prod

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 → 2H3PO4I got this question by my school principal while I was bunking the class.This is a very interesting question from Inorganic Chemical in division Inorganic Chemical Industries of Chemical Technology
Answer» Right option is (d) P2 O5 + 3H2O → 2H3PO4 For explanation I would say: Reaction P2 O5 + 3H2O → 2H3PO4 takes place in ELECTRIC FURNACE process, remaining reactions takes places in wet process METHOD (both H2SO4 leaching and HCl leaching).

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