Boojho is writing some statements, choose the correct statement and help him:

About 300 million years ago the earth had dense forests in low lying wetland areas. Due to natural processes, like flooding, these forests got buried under the soil. As more soil deposited over them, they were compressed. The temperature also rose as they sank deeper and deeper. Under high pressure and high temperature, dead plants got slowly converted to coal. As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation.

Petroleum was formed from organisms:

Petroleum was formed by the decomposition of the remains of tiny plants and animals buried under the sea millions of years ago.

Paheli is writing some statement which is given by her teacher. Would you help him to choose the correct statements?

Here, all these statements are correct. Hence, your answer will be option [D].

Boojho appeared in class test where he wrote some statements but he confused to know the incorrect statement. Would you help him to know that?

Resources which are present in unlimited quantity in nature are called in-exhaustible natural resources.

Which of the following is not a constituent of petroleum?

Coke is not a constituent of petroleum. Coke is prepared by heating coal in the absence of air.

Which of the following statement is or are incorrect?

Paraffin wax is used in ointment, candles, Vaseline etc. Bitumen is used in paints and road surfacing.

Which substance is formed by the carbonization of dead vegetation?

Coal is formed by the carbonization of dead vegetation.

Coal is formed from the remains of:

Coal is formed by the decomposition of large land plants and trees buried under the earth about 300 million years ago.

Consider the following statements and choose the incorrect one:

Petroleum occurs deep under the surface of earth between two layers of impervious rocks. Petroleum is lighter than water, so it floats over water. Petroleum oil deposits are usually found mixed with water, salt and earth particles. Petroleum does not find in all place of the earth. It is found only in certain areas of the earth. Natural gas found above the petroleum oil trapped under the rocks.

Which of the following statement is or are incorrect?

Here, all these statements are correct. Hence, your answer will be option [D].

Boojho appeared in class test where he wrote some statements but he confused to know the incorrect statement. Would you help him to know that?

Bitumen is used for road surfacing. It is also used for water-proofing the roofs of building. Bitumen is used in making black paints.

Consider the following statements and choose the incorrect one:

Natural gas is called a clean fuel because it burns without producing any smoke and does not cause air pollution. In fact, natural gas is stored under high pressure as compressed natural gas. It becomes easier to store, transport and use natural gas in the form of CNG.

Which of the following is a pair of exhaustible natural resources?

Wildlife and minerals are exhaustible natural resources because these resources are present in a limited quantity in nature and can be exhausted by human activities.

Which is the major component of LPG and CNG?

The major component of LPG and CNG are butane and methane respectively.

Paheli is writing some sentences about fossil fuel as “we should use fossil fuel only when absolutely necessary” because:

Here, all these statements are correct about fossil fuel. Hence, your answer will be option [D].

Air is a natural resource and cannot be exhausted by human activities. It is known as in exhaustible natural resources. Which of the following is another inexhaustible natural resource?

Sunlight, air and water are inexhaustible natural resources that means which cannot be exhausted by human activities.

In which of the following sentences is or are correct?

Coal tar is black liquid which have unpleasant smell and obtained from coke. Although, coal tar is a not a single compound, it is a mixture of 200 types of carbon compounds. Such as, benzene, naphthalene, phenol etc.

Class 8 Science Chapter 5 MCQ

Class 8 Science Chapter 5 MCQ (Multiple Choice Questions) of Coal and Petroleum. MCQs are now important part of school examinations and very effective to clear the concept of the chapter in particularly science subject.

All the multiple choice questions are taken from NCERT Textbooks only and answers also confined to NCERT Books only. Practicing these questions ensure scoring good marks in exams and helps in the preparation of chapter for terminal tests.

Class 8 Science Chapter 5 MCQ Online Test for 2020-2021

Class: 8	Science
Chapter: 5	Coal and Petroleum
Contents:	MCQ Online Tests with Answers

Class 8 Science Chapter 5 MCQ Test with Explanation

Class 8 Science Chapter 5 MCQ with suitable answers and explanation are given below. All the questions are verified by the subject experts. If still there is any error, please inform us for modification. There are more than 75 questions in the sets of 10 questions. All the questions are confined to NCERT Textbooks for Class 8 Science only. Click on Start a New Test and get a set of 10 questions as a new test.

Paheli is writing some statements. She wants to know in which of the following statements is or are correct?

[A]. Petroleum, coal and natural gas are fossil fuels.

[B]. Forest and coal are exhaustible natural resources

[C]. Decantation can be used to separate a mixture of petroleum and water

[D]. All the above

Consider the following statements and choose the correct one:

[A]. Sunlight is an example of inexhaustible natural resources.

[B]. Kerosene is a fuel used in jet crafts.

[C]. Refinery is a place where various fractions of petroleum are separated.

[D]. All the above

Naphthalene balls are obtained from coal tar and are used as:

[A]. Mosquito repellent

[B]. Honeybee repellent

[C]. Moth repellent

[D]. Snake repellent

View Answer

Consider the following statements, choose the incorrect one:

[A]. Those natural resources which are present in unlimited quantity in nature and are not exhausted by human activities called inexhaustible natural resources.

[B]. Those natural resources which are present in limited quantity in nature and can be exhausted by human activities are called exhaustible natural resources.

[C]. Coal and petroleum and natural gas and air are also non-renewable resources of energy.

[D]. None of the above

View Answer

Paheli is writing about the advantages of liquefied petroleum gas. Which of the following statements are incorrect? Would you help him to know that?

[A]. LPG does not leave behind any solid residue on burning.

[B]. LPG produced many poisonous gasses on burning.

[C]. LPG burns with a smokeless flame and hence does not cause air pollution.

[D]. LPG has a high calorific value should produce lots of heat.

View Answer

Boojho is writing some statements, choose the incorrect statement and help him:

[A]. Those chemicals which are obtained from petroleum and natural gas are called petrochemicals.

[B]. Petrochemical are very important because they are used to manufacturing a wide range of useful material.

[C]. The burning of fossil fuel is a major source of air pollution and global warming.

[D]. None of the above

View Answer

People are advised to save petrol while driving. Considered the sentences and choose the correct statements which are fits to saving petrol.

[A]. Drive the vehicle at a constant and moderate speed as possible.

[B]. Switch off the vehicle’s engine at traffic lights or at a place where a person has to wait.

[C]. Ensure correct air pressure in the tyres of vehicles.

[D]. All the above.

View Answer

The various compounds present in coal tar are separated by the process of:

[A]. Simple distillation

[B]. Destructive distillation

[C]. Fractional distillation

[D]. Fractional crystallization

View Answer

Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resource?

[A]. Minerals

[B]. Water

[C]. Soil

[D]. Plastic

View Answer

Q10

Consider the following statement and choose the incorrect one:

[A]. Coal gas, coal tar and coke are called products of coal.

[B]. The strong heating of coal is the absence of air is called “destructive distillation” of coal.

[C]. Coal tar is a thick, black liquid having an unpleasant smell which is obtained by heating coal in the absence of air.

[D]. Coal is used in the manufacturing of copper and aluminum.

View Answer

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