Superphosphate is manufactured by reacting phosphate rock with_____________________?
Correct answer: C. Sulphuric acid
- A. Acetic acid
- B. Aluminium chloride
- C. Sulphuric acid
- D. None of these
Explanation
Sulfuric acid acidulates phosphate rock to produce single superphosphate, containing monocalcium phosphate and gypsum. Acetic acid and aluminium chloride are not the standard acidulants for this product.
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