_______contain more than 90 percent carbon and brunt without smoke
Answers
Answer:
The only element which contains any carbon at all is carbon. That’s what the word “element” means! So the answer to your question is “carbon” - although it might be tricky to get some of the common allotropes to burn cleanly, it can certainly be achieved with the right means. High quality coal or coke will do it.
If I assume you meant to use the word “compound” rather than “element” in your question, the 90% carbon requirement makes it tricky as that puts out any alkane hydrocarbon as they max out at ~85% carbon. So it’d have to be an aromatic (benzene is 92% carbon) or a highly unsaturated linear carbon. Getting any of these to burn clean would be tricky but might be possible with the right burner.
Explanation:
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Answer:
maybe carbon
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