CBSE Worksheet for Chapter - 3 Coal And Petroleum Class 8

Worksheets For class 8

Find CBSE Worksheet for chapter-3 Coal And Petrolium class 8

1. CLASS-8
2. BOARD: CBSE
3. Chemistry Worksheet - 3
4. TOPIC: Coal And Petrolium
5. For otherCBSE Worksheet for class 8 Science check out main page of Physics Wallah.

SUMMARY

• Definition and types of natural resources.
• Fossil fuels.
• Coal – introduction, formation, destruction distillation and uses.
• Petroleum – introduction, formation, fractional distillation and uses.
• Natural gas.
• Conservation of fossil fuels.

SECTION – 1

SECTION – 2

1. The gas which is found with petroleum is :
   1. Hydrogen
   2. oxygen
   3. natural gas
   4. producer gas
2. Petroleum is refined by :
   1. Crystallization
   2. steam distillation
   3. fractional distillation
   4. distillation
3. LPG mainly contains :
   1. butane and isobutene
   2. methane
   3. methane and ethane
   4. hydrogen , methane and ethane.
4. Natural gas is composed primarily of :
   1. Methane
   2. n-butane
   3. n-octane
   4. a mixture of octanes
5. Ammonicalliquor is –
   1. Ammonia absorbed in water
   2. Ammonium hydroxide
   3. Aqueous solution of ammonia
   4. All the above.
6. Maximum carbon containing coal is –
   1. Peat
   2. lignite
   3. bituminous
   4. anthracite
7. Main constituents of coal gas are –
   1. H₂O, C₂H₆, O₂
   2. CH₄, CO₂, O₂
   3. CH₄, H₂, CO
   4. C₂H₆, N₂, O₂
8. The substance added to detect the leakage of LPG is –
   1. Methyl mercaptan
   2. Ethylmercaptan
   3. both (A) & (B)
   4. none of these
9. The head of safety match contain-
   1. . Antimony trisulphide and potassium chlorate.
   2. . Antimony chloride and potassium sulphide.
   3. . Antimony carbonate.
   4. . Potassium sulphide.
10. Differentiate between inexhaustible and exhaustible natural resources.
11. Give the use of the following –
    1. Coke
    2. coal tar
    3. coal gas
12. Write two ways to conserve fossil fuels.
13. Why is petroleum called black gold ?
14. Name the different varieties of coal.
15. Write a short note on the formation of coal.