Multiple choice

What typoe of substance coal-tar is?

  1. a compound

  2. an element

  3. a mixture of a number of carbon compounds

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coal tar is a complex mixture containing hundreds of different organic compounds, primarily aromatic hydrocarbons like benzene, toluene, xylene, and naphthalene. It is produced during the destructive distillation of coal and is definitely not a single compound or element.

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