Hard coke is manufactured from___________________?
Correct answer: B. Bituminous coal
- A. Lignite
- B. Bituminous coal
- C. Semi-anthracite
- D. Anthracite
Explanation
Hard coke is made by carbonising suitable bituminous coal, which softens and fuses before becoming a strong porous coke. Lignite does not produce this quality of metallurgical coke, while anthracite does not soften and fuse readily.
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