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Paraffins are obtained by ______ process from petroleum.

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Paraffins are obtained by ______ process from petroleum.

(a) fractional distillation

(b) sedimentation

(c) filtration

(d) fermentation

This question was posed to me during an internship interview.

My question is based upon Classification of Crude Oil based on their Composition in division Fuel Technologies of Applied Chemistry

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Correct option is (a) fractional distillation

Easiest explanation: Fractional distillation is the process in which the petroleum is refined and in this process at every stage there will some bi-product and at a certain stage paraffins are obtained in this process. Fermentation is used to produce the alcohol and filtration is the process of removing impurities.

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