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Question

Refining of petroleum is carried out using which one of the following techniques?

The correct answer is Fractional distillation

The correct option is Option 2: Fractional distillation.

How Petroleum Refining Works

Petroleum (crude oil) is a complex mixture of various hydrocarbons. Because these different components have different boiling points, they can be separated efficiently using fractional distillation.

The Process: Crude oil is heated to a high temperature (around 400°C) and introduced into a tall fractionating column.

Separation by Boiling Points: As the vapor rises up the column, it cools down. Hydrocarbons with higher boiling points condense back into liquids lower down in the column, while those with lower boiling points rise higher before condensing.

Products Obtained: This process separates crude oil into useful fractions such as refinery gas, gasoline (petrol), diesel, kerosene, fuel oil, and bitumen.

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Important Questions from Hydrocarbons

  1. The number of structural isomers of pentane is 

  2. C 4H 8belongs to the homologous series of

  3. What is the number of mole(s) of H 2(g) required to saturate one mole benzene?

  4. Which one of the following carbon compounds will not give a sooty flame?

  5. Directions: The following 05 (Five) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the answers to these items using the code given below:

    Statement I: Petroleum is a mixture of many different hydrocarbons of different densities.

    Statement II: The grade of petroleum depends mainly on the relative proportion of the different hydrocarbons.

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