Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?
Correct answer: A. NH3
- A. NH3
- B. NaCl
- C. CaO
- D. Coke
Explanation
Ammonia is used in the Solvay process to absorb carbon dioxide and form ammonium bicarbonate, then it is regenerated and recycled. Because it is not consumed overall, NH3 acts like a catalyst or carrier in the process.
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