Multiple choice

Petroleum consists of a mixture of _____.

  1. Carbohydrates

  2. Carbonates

  3. Hydrocarbons

  4. Carbides

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

Petroleum is primarily a mixture of hydrocarbons - compounds containing only hydrogen and carbon atoms. These include alkanes, cycloalkanes, and aromatic hydrocarbons. Carbohydrates contain oxygen, carbonates are salts, and carbides contain carbon-metal bonds - none are major components of crude petroleum.