Frasch process is for______________________?
Correct answer: C. Mining sulphur
- A. Making oxygen
- B. Producing helium
- C. Mining sulphur
- D. Making nitrogen
Explanation
The Frasch process extracts underground sulphur by injecting superheated water to melt the sulphur and compressed air to lift it to the surface. It is therefore a sulphur-mining process.
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