Multiple choice

Dilute sulphuric acid is used in the extraction and refining process of petroleum to

  1. remove basic impurities

  2. obtain various components of petroleum

  3. remove acidic impurities

  4. pump out oil from the pipe

  5. None of these

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

Yes, it is correct. Acid is used to remove basic impurities from petroleum.