Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.

Triple superphosphate which contains about 46% P₂O₅ is produced b

1.	Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
A.	25-28
B.	52-54
C.	75-80
D.	> 98
Answer» C. 75-80