Reaction of nitric acid and sulphuric acid with phosphate rock produces_________________?
Correct answer: D. Nitrophosphate
- A. Tributyl phosphate
- B. Diammonium phosphate
- C. Tricresyl phosphate
- D. Nitrophosphate
Explanation
Nitric-acid digestion of phosphate rock, often with sulphuric acid in the process, produces nitrophosphate fertilizers. Diammonium phosphate requires ammonia as an additional reactant, while the phosphate esters are unrelated products.
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