Question

17: in which sequence Purification of petroleum oil contains
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Answer 1

Answer:

(i) Drilling of the oil through the various layers under the earth's surface.

(ii) Processing of crude oil to remove heavy oil.

(iii) Purification of crude oil containing salt water.

(iv) Heating of the crude oil containing pure mixture of hydrocarbons over a specific range of temperature.

(v) Separation of constituents by fractional distillation.