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Q. |
Petroleum is a mixture of – |
A. | elements |
B. | hydrocarbons |
C. | polymers |
D. | salts |
Answer» B. hydrocarbons | |
Explanation: Petroleum or crude oil is a naturally occurring flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. A fossil fuel, it is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and undergo intense heat and pressure. |
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