Float and sink test determines the possibility of cleaning of coal by a process based on the___________________?
Correct answer: D. Gravity separation
- A. None of these
- B. Wettability
- C. Particle shape
- D. Gravity separation
Explanation
The float-and-sink test separates coal according to density differences, so it predicts whether gravity-based cleaning can remove the denser mineral matter from the lighter coal.
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