Reaction of ortho-phosphoric acid with phosphate rock produces _________________?
Correct answer: B. Triple superphosphate
- A. Superphosphate
- B. Triple superphosphate
- C. Meta-phosphoric acid
- D. Monoammonium phosphate
Explanation
Phosphate rock reacts with phosphoric acid to produce triple superphosphate, which is mainly monocalcium phosphate. Ordinary superphosphate instead uses sulfuric acid and consequently contains calcium sulfate as well.
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