Which will have the least volatile matter and hence will be the most difficult to ignite ?
Correct answer: B. Coke
- A. Bituminous coal
- B. Coke
- C. Semi-bituminous coal
- D. Anthracite
Explanation
Coke is produced by removing most volatile matter from coal, leaving mainly fixed carbon, so it is difficult to ignite. Anthracite also has low volatile matter, but normally retains more than coke.
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