CBSE Class 8 Science Coal and Petroleum VBQs

CBSE Class 8 Science Coal and Petroleum VBQs read and download in pdf. Value Based Questions come in exams for Science in Class 8 and are easy to learn and helpful in scoring good marks. You can refer to more chapter wise VBQs for Class 8 Science and also get latest topic wise very useful study material as per latest NCERT book for Class 8 Science and all other subjects for free on Studiestoday designed as per latest Class 8 CBSE, NCERT and KVS syllabus and examination pattern

VBQ for Class 8 Science Chapter 5 Coal and Petroleum

Class 8 Science students should refer to the following value based questions with answers for Chapter 5 Coal and Petroleum in Class 8. These VBQ questions with answers for Class 8 Science will come in exams and help you to score good marks

Chapter 5 Coal and Petroleum VBQ Questions Class 8 Science with Answers

Fill in the blanks.

(a) Fossil fuels Coal, Petroleum, and natural gas.

(b) Process of separation of different constituents from petroleum is called refining.

(c) Least polluting fuel for vehicle is Compressed Natural Gas (CNG).

Tick True/False against the following statements.

(a) Fossil fuels can be made in the laboratory.
Answer : False

(b) CNG is more polluting fuel than petrol. 
Answer : False

(c) Coke is almost pure form of carbon.
Answer : True

(d) Coal tar is a mixture of various substances.
Answer : True

(e) Kerosene is not a fossil fuel. 
Answer : False

 

Very Short Answer type Questions

Question. Name the petroleum product used for surfacing of roads.
Answer : Bitumen.

Question. Explain the process of formation of petroleum.
Answer : Dead organisms that got buried in the sea millions of years ago got covered with layers of sand and clay. Due to lack of air, high temperature, and high pressure, these dead organisms got transformed into petroleum and natural gas.

Question. Describe how coal is formed from dead vegetation. What is this process called?
Answer : Dense forests got buried under the soil due to natural processes, millions of years ago. More and more soil got deposited over them and they got compressed more. This led them to get exposed to very high temperature and pressure. They slowly got converted into coal under these extreme conditions. The whole process of formation of coal from dead vegetation is known as carbonization.

Question. The following Table shows the total power shortage in India from 1991–1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.

""CBSE-Class-8-Science-Coal-and-Petroleum

Answer :

""CBSE-Class-8-Science-Coal-and-Petroleum-1

Question. What are the advantages of using CNG and LPG as fuels?
Answer : The advantages of using compressed natural gas (CNG) and liquefied petroleum gas (LPG) as fuels are:
(i) They can be burnt directly.
(ii) They can be transported easily through pipe lines.
(iii) They are clean fuels and do not give smoke when burnt.
(iv) They give a lot of heat energy when burnt.

Question- Explain why fossil fuels are exhaustible natural resources.
Answer : Because sources of fossil fuels are limited on earth, and fossil fuels take million years to replenish.

Question. Write various constituents of petroleum and their uses.
Answer :

""CBSE-Class-8-Science-Coal-and-Petroleum-2

Question. Describe characteristics and uses of coke.
Answer : Characteristics: i) Coke is tough, porous and black in colour.
Uses: i) In the manufacture of steel, ii) In the extraction of metals (as a reducing agent).

More Study Material

CBSE Class 8 Science Chapter 5 Coal and Petroleum VBQs

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VBQs for Science CBSE Class 8 Chapter 5 Coal and Petroleum

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Chapter 5 Coal and Petroleum VBQs Science CBSE Class 8

All VBQs given above for Class 8 Science have been made as per the latest syllabus and books issued for the current academic year. The students of Class 8 can refer to the answers which have been also provided by our teachers for all VBQs of Science so that you are able to solve the questions and then compare your answers with the solutions provided by us. We have also provided lot of MCQ questions for Class 8 Science so that you can solve questions relating to all topics given in each chapter. All study material for Class 8 Science students have been given on studiestoday.

Chapter 5 Coal and Petroleum CBSE Class 8 VBQs Science

Regular VBQs practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Chapter 5 Coal and Petroleum concepts. VBQs play an important role in developing understanding of Chapter 5 Coal and Petroleum in CBSE Class 8. Students can download and save or print all the VBQs, printable assignments, practice sheets of the above chapter in Class 8 Science in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 8 Science MCQ Test for the same chapter

CBSE VBQs Science Class 8 Chapter 5 Coal and Petroleum

CBSE Class 8 Science best textbooks have been used for writing the problems given in the above VBQs. If you have tests coming up then you should revise all concepts relating to Chapter 5 Coal and Petroleum and then take out print of the above VBQs and attempt all problems. We have also provided a lot of other VBQs for Class 8 Science which you can use to further make yourself better in Science

Where can I download latest CBSE VBQs for Class 8 Science Chapter 5 Coal and Petroleum

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What are VBQs for Class 8 Science Chapter 5 Coal and Petroleum

Value Based Questions (VBQs) for Class 8 Science Chapter 5 Coal and Petroleum help to test the ability of students to apply learnings to various situations in life.