Organic Chemistry Of Fractional distillation of crude oil and its fractions

 

WAEC Chemistry Practice Quiz: Fractional Distillation of Crude Oil & Fractions

Enhance your exam preparation with these 10 WAEC-standard multiple-choice questions. Click "Show Answer" below any question to see the correct option and chemical breakdown.

1. Fractional distillation of crude oil separates constituents based on differences in their ________.

2. As you move from the bottom to the top of a petroleum fractionating tower, the temperature ________.

3. Which of the following crude oil fractions has the lowest boiling point range and is collected at the top of the tower?

4. The petroleum fraction commonly used as aviation fuel for jet engines is ________.

5. Which of these properties increases as the molecular mass of a petroleum fraction increases?

6. The dark, viscous residue recovered from the very bottom of the fractionating tower used for road surfacing is ________.

7. Which petroleum fraction serves as the primary starting material for the manufacture of petrochemicals like plastics and synthetic drugs?

8. Crude oil is heated to a vapor state at about ________ before entering the fractionating tower.

9. Which of the following arrangements accurately places the fractions in order of **decreasing** boiling points?

10. Crude oil as extracted from the earth is classified as ________.

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