Multiple choice

Which of the following is an almost pure form of carbon and is used mainly as a reducing agent in the extraction of some metals?

  1. Coal gas

  2. Coke

  3. Coal tar

  4. Petroleum gas

  5. Kerosene

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

This is the correct option. Coke is an almost pure form of carbon and is used mainly as a reducing agent in the extraction of some metals.