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  • Which is an almost pure form of carbon?
Multiple choice

Which is an almost pure form of carbon?

  1. Peat

  2. Lignite

  3. Bituminous

  4. Anthracite

  5. Peat and lignite

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Anthracite is the highest rank of coal. It has a carbon content of over 87% on a dry ash-free basis.

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