Question

petrol is a mixture of ........ such as hexane,heptane and octane

(A)natural gas
(B)coal gas
(C)coal tar
(D)coal

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Answer 1

Answer:

I think it must be (D) coal

Answer 2

Answer :- A) Natural gas.

Explanation :-

An oil well produces predominantly crude oil, with some natural gas dissolved in it.

Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas. A gas well produces predominantly natural gas.

However, because the underground temperature is higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state.