Multiple choice

Which of the following is not an allotropic forms of coal?

  1. Lignite

  2. Carbonblack

  3. Anthracite

  4. Bituminous coal
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is obtained by burning natural gas in the presence of limited supply of air and collecting the soot on the underside of a revolving disc which is scrapped off and packed. It is not an allotropic forms of coal.

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