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Class 8

Explore popular questions from Coal and Petroleum for Class 8. This collection covers Coal and Petroleum previous year Class 8 questions hand picked by experienced teachers.

Coal and Petroleum

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Q 1. Coal is fossil fuel because is

Formed from the vegetation Plants

B

Formed very easily & quickly

C

It is as hard as stone and is black

D

None of these

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Q 2. Coal contributes about ________ energy needs in our country

67%

B

70%

C

25%

D

80%

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Q 3. Coal mines in our country are in :

A

Haryana

B

Punjab

C

Rajasthan

Bihar

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Q 4. In which of the following state network of pipe lines exists for the supply of CNG.

Gujrat

B

Bihar

C

Rajasthan

D

Haryana

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Q 5. Coke is Starting material for the preparation of

A

Acetylene, Acetic acid

B

Plastics (PVC)

C

Water gas

All of these

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Q 6. Petroleum is non renewable source of energy because

It takes millions of year to form

B

It is trapped between the layers of rocks

C

It is lighter than water

D

All of these

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Q 7. Compounds obtained from coal tar is

Benzene,Toluene, Phenol

B

{tex}CO_2, CH_4 {/tex}& {tex}NH_3 {/tex}

C

Fibers, Pesticides

D

None of these

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Q 8. Paraffin wax is used in

A

Ointments, Candles, Vaseline

B

Paints, Varnishes

C

Solid Fuel

(A) & (B) both

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Q 9. Fractional distillation of Petroleum yields

A

Liquified Petroleum gas, Petrol, kerosene

B

Paints,Varnishes, explosives

C

Diesel oil, fuel oil and residue oil

(A) & (C) both

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Q 10. What is the meaning of petroleum?

A

Home oil

B

Industry oil

Rock oil

D

None of these

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Q 11. Which of the following is a fossil fuel.

A

Coal

B

Petroleum

C

Natural gas

All

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Q 12. Coal and petroleum resources are–

Limited

B

Unlimited

C

Both

D

None

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Q 13. ________is used for making printer ink, shoe polish

A

Graphite

B

Coke

Lampblack

D

Coal

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Q 14. Which one of the following is known as freon-12 ?

{tex}CCL_2F_2{/tex}

B

{tex}CHCL_2F_2{/tex}

C

{tex}CH_2F_2{/tex}

D

{tex}CF_4{/tex}

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Q 15. CNG is preferred over other fossil fuels because :-

A

CNG is used as a domestic / Industrial fuel

It is also very clean fuel without pollution on burning

C

It is source of carbon and hydrogen

D

All of these

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Q 16. The main constituent of natural gas is :

A

Propanol

B

Methanol

Methane

D

Hexane

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Q 17. Natural gases preferred over other fossil fuels:

A

Easy to transport

B

Does not cause pollution

both (A) and (B)

D

None of these

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Q 18. The distillation of crude petroleum to obtain various commercially useful fraction is called :

A

compression

refining

C

mining

D

none of these

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Q 19. CNG stands for

A

Conventional Natural Gas

B

Coal and Natural Gas

Compressed Natural Gas

D

Commercial Natural Gas

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Q 20. The substance added to detect the leakage of LPG is

A

methyl mercaptan

ethyl mercaptan

C

both (A) and (B)

D

none of these

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Q 21. Least Polluting fuel for vehicle is :

A

Petrol

B

Diesel

CNG

D

LPG

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Q 22. Which of the following is a main constituent of natural gas?

Methane

B

Ethane

C

Propane

D

Butane

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Q 23. Consider the following statements.
a. Natural gas can be supplied to homes and factories through pipes.
b. Natural gas is obtained by fractional distillation of crude oil.
c. Natural gas is a cleaner fuel because on burning only water is produced.
d. Natural gas is an exhaustible source of energy like fossil fuels
Which alternatives has the correct statements?

A

a and c

B

b and c

a and d

D

a, c and d

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Q 24. Match List-I(fraction of petroleum) with List II (main uses) and select the correct answer from the given alternatives.

List-I (fraction of petroleum) List II (main uses)
A Kerosene I Metalling of roads
B Diesel II Jet aircraft fuel
C Paraffin Wax III Generation of electricity
D Bitumen IV Lubricants

A

A-I, B-II, C-III, D-IV

B

A-I, B-III, C-IV, D-II

A-II, B-III, C-IV, D-I

D

A-IV, B-II, D-III, C-I

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Q 25. Coal is a fossil fuel and it cannot be prepared in a laboratory or industry because the formation of coal.
a. is very slow process.
b. needs very low pressure and low temperature.
c. needs veryhigh pressure and high temperature:
d. causes air pollution.
Select the correct alternative.

A

a and b

B

b and d

c and a

D

d and c