Which of the following is not a sulphur compound present in petroleum ?
A. Thiophenes
B. Mercaptans
C. Sulphones
D. Pyroles
Answer: Option D
Related Questions on Petroleum Refinery Engineering
Aniline point test of an oil qualitatively indicates the __________ content of an oil.
A. Paraffin
B. Olefin
C. Aromatic
D. Naphthene
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