Crude oil is a complex mixture of hydrocarbons with varying chain lengths and boiling points. Fractional distillation involves heating the crude oil and separating the vapours into different fractions at various levels of a fractionating column based on their condensation temperatures. Lighter fractions with lower boiling points rise higher in the column, while heavier fractions with higher boiling points condense lower down.
Refining of petroleum is carried out using which one of the following techniques?
Asked in UPSC NDA 1 2022 · Topic: Physical and Chemical Changes, Solution (Types of Solutions (e.g., Solid in Liquid, Liquid in Liquid, Gas in Liquid))
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Answer: B. Fractional distillation
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