Multiple choice

The by-product of coal tar is used in industries in the manufacture of

  1. lubricants for machines

  2. Vaseline

  3. Boot polish

  4. Fertilisers

  5. Aviation fuel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fertiliser manufacturing industries use ammoniacal liquor, which is a by-product of coal tar, which is in turn is obtained during the destructive distillation of coal. All other products are manufactured with the use of petroleum constituents.

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