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According to the inorganic theory in which form does the petroleum is found under the earth’s crust?

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in Engineering Chemistry II by (789k points)
According to the inorganic theory in which form does the petroleum is found under the earth’s crust?

(a) Metal fluorites

(b) Metal pyrites

(c) Metal carbides

(d) Metal oxides

The question was posed to me during an interview.

Enquiry is from Petroleum in section Fuels and Combustion of Engineering Chemistry II

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The correct option is (c) Metal carbides

Easiest explanation: According to the inorganic theory for origin of petroleum, the metal carbides are formed under the earth’s crust due to the interaction of metals and carbon under high temperature and pressure. These carbides reacts with steam or water giving lower hydrocarbons which on further hydrogenation and polymerisation gives complex mixtures.

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