1.

In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable

A. CaSO₄ .½H₂O and CaSO₄ crystals
B. Pyrophosphoric acid
C. Metaphosphoric acid
D. All of the above
Answer» B. Pyrophosphoric acid


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