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NCERT solutions Science Class 8 chapter 5 Coal and Petroleum

Chapters

NCERT Science Class 8

Science Textbook For Class 8

Chapter 5 - Coal and Petroleum

Pages 62 - 63

What are the advantages of using CNG and LPG as fuels?

Q 1 | Page 62

Name the petroleum product used for surfacing of roads.

Q 2 | Page 62

Describe how coal is formed from dead vegetation. What is this process called?

Q 3 | Page 62

Fill in the banks.

Fossil fuels are ________________ and _________.

Q 4.1 | Page 62

Fill in the banks.

Process of separation of different constituents from petroleum is called _________.

Q 4.2 | Page 62

Fill in the banks

Least polluting fuel for vehicles is ______.

Q 4.3 | Page 62

Tick True/False against the following statements.

Fossil fuels can be made in the laboratory. (T / F)

Q 5.1 | Page 62

Tick True/False against the following statements.

CNG is more polluting fuel than petrol. (T / F)

Q 5.2 | Page 62

Tick True/False against the following statements.

Coke is almost pure form of carbon. (T / F)

Q 5.3 | Page 62

Tick True/False against the following statements.

Kerosene is not a fossil fuel. (T / F)

Q 5.5 | Page 62

Explain why fossil fuels are exhaustible natural resources.

Q 6 | Page 62

Describe characteristics and uses of coke.

Q 7 | Page 63

Explain the process of formation of petroleum.

Q 8 | Page 63

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.

S. No Year Shortage (%)
1 1991 7.9
2 1992 7.8
3 1993 8.3
4 1994 7.4
5 1995 7.1
6 1996 9.2
7 1997 11.5
Q 9 | Page 63

NCERT Science Class 8

Science Textbook For Class 8
S