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Q108 (CAPF/2026) Science & Technology › Basic Science (Physics, Chemistry, Biology)

Which of the following pairs of products obtained from petroleum distillation and their uses are correctly matched?
1. Petroleum ether : Used as solvent
2. Petroleum jelly : Used to make coating of metals
3. Petroleum wax : Used as rubber solvent
4. White spirit : Used for making candles
Select the answer using the code given below.

Result
Your answer: —  ·  Correct: B

Explanation

Petroleum distillation yields various fractions with specific industrial applications:

  • Petroleum ether is a light hydrocarbon fraction used extensively as a non-polar solvent in laboratories and for industrial extraction processes.
  • Petroleum jelly (petrolatum) is a semi-solid mixture used in ointments and as a protective coating for metal surfaces to prevent corrosion and rusting.
  • Petroleum wax (Paraffin wax) is a solid residue used primarily for making candles, wax paper, and polishes. It is not used as a rubber solvent.
  • White spirit (mineral spirits) is a volatile distillate used as a solvent for thinning paints and varnishes and in dry cleaning. It is not used for making candles.

Since pairs 1 and 2 are correctly matched while pairs 3 and 4 are incorrectly matched (their uses are essentially swapped), the correct answer is 1 and 2 only.

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