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Petroleum

Petrochemical...

Question

Petrochemicals obtained from crude oil are made up of different ________.

A

Minerals

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B

Hydrocarbons

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C

Oils

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D

Acids

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Solution

The correct option is B
Hydrocarbons

Petrochemicals are the products prepared from the hydrocarbons separated from petroleum. Petroleum is a mixture of hydrocarbons of different lengths and structures. These hydrocarbons are separated by fractional distillation.

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Q. Crude Oil or petroleum has petrochemicals (hydrocarbons) that have different boiling points.

Q. Crude oil or petroleum is composed of petrochemicals (hydrocarbons) that have different boiling points.

Different components are obtained from crude oil by__________

Q. Fill in the blanks with appropriate words selected from those given below.

heights, condense, lower, bitumen, hydrocarbons,
high, fractional distillation, cool, fractionating column,
diesel oil, petrol, refinery, higher up, lower down

(a) Crude oil is made up of many different ___________. In an oil ___________, the hydrocarbons are separated into different products by a process called _____________ ___________. The crude oil is heated to a high temperature and passed into the____________ __________. As the vapours rise towards the top the different hydrocarbons ___________ at different ___________ and are withdrawn separately.
(b) Substances with _____________ boiling points condense first, in the column. Substances with ___________ boiling points condense ______________. Light products like ___________ are withdrawn from near the top of the column. Heavier products like ___________ and fuel oil are taken out lower down. The heaviest hydrocarbons, such as __________ are left at the bottom.

How are the different components obtained from crude oil?

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