1. Naphtha
  2. Sulphur
  3. Aniline dyes
  4. Paraffin wax
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1 Answers

Answer: Option 2

Sulphur is not one of the by-products of mineral oil. Sulphur produced as a by-product of ferrous and non-ferrous metal smelting is produced in the form of sulphuric acid.

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