The term black gold is used for:
Correct answer: C. Petroleum
- A. Coal
- B. Carbon black
- C. Petroleum
- D. Coal tar
Explanation
The term "black gold" is commonly used to refer to petroleum. This nickname comes from the fact that petroleum is a valuable natural resource, and it is often dark or black in color. Therefore, option c is correct.
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About Alkanes
Alkanes are saturated hydrocarbons containing only carbon-carbon and carbon-hydrogen single bonds, with the general formula CnH2n+2 for open chains. Their structure, isomerism, IUPAC nomenclature, physical properties, combustion, free-radical halogenation and conformations are covered, including the difference between substitution in alkanes and addition in unsaturated hydrocarbons.
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