Petroleum Engineering Question:

Olefins are

A. saturated hydrocarbons.
B. unsaturated cyclic compounds (hydrocarbons).
C. present in substantially good quantity in crude petroleum.
D. none of these.

Option D

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The first crude oil refinery of India is located at A. Naharkatiya B. Digboi C. Kochin D. Madras	Which of the following is desirable in diesel and kerosene but is undersirable in gasoline? A. Aromatics B. Mercaptans C. Paraffins D. Naphthenic acid