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Petroleum

Crude oil or ...

Question

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

A

True

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B

False

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Solution

The correct option is A True
Crude oil or Petroleum has components like petrol, diesel, kerosene, etc. These products have different boiling points which are useful in separating them through fractional distillation.

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

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

Q. Because they have different boiling points, the substances in crude oil can be separated using:

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 As the vapours rise towards the top the different hydrocarbons ___________ at different ___________ and are withdrawn separately.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 Light products like ___________ are withdrawn from near the top of the column.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.

Q.  Consider the following statements given below regarding crude oil:
1.Petroleum is formed as a result of the deposition and fossilization of marine animals.
2.The components of the crude oil have different melting and boiling points.
Which of the above statements given above is/are correct?

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