Essential Chemistry for IGCSE - Organic Chemistry And Petrochemicals (Section 3 - No. 3)
Which of the following statements are true regarding the composition of crude oil?
Primarily composed of hydrocarbons.
Contains impurities, such as sulfur and metals.
Contains only alkanes.
Has a consistent composition worldwide.
Explanation
Crude oil contains mostly hydrocarbons plus other impurities.
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