Moderate
Caking coals are those which__________?
Correct answer: D. form lumps or masses of coke
- A. burn completely
- B. burn freely
- C. do not form ash
- D. form lumps or masses of coke
Explanation
Caking coal softens and fuses when heated, producing coherent lumps or masses of coke. Its tendency to form these lumps distinguishes it from non-caking coal.
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