Q.

What is the primary component of crude oil?

A. sulfur
B. carbon
C. hydrogen
D. nitrogen
Answer» B. carbon
Explanation: crude oil is greenish brown and viscous oil found on the earth’s surface. it is primarily composed of hydrocarbons (79.5- 87.1%) followed by hydrogen (11.5-14.8%), sulfur (0.1-3.5%), and nitrogen and oxygen (0.1-0.5%).
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