Class 8 Science Coal and Petroleum Assertion and Reason

Class 8 Science Coal and Petroleum Assertion and Reason-Here, we will share Class 8 Science Coal and Petroleum Assertion and Reason. if you are searching for Class 8 Science Coal and Petroleum Assertion and Reason questions with solutions, you are in the right place.

Class 8 Science Coal and Petroleum Assertion and Reason

1.Assertion: Natural gas is considered a clean fuel.

Reason: It burns with a smokeless flame and does not produce any solid residue on burning.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

Natural gas burns cleanly because it produces a smokeless flame and leaves behind no solid residue, making it a cleaner fuel compared to others.

2. Assertion: Natural gas is mainly composed of methane.

Reason: It contains about 95% methane along with small quantities of ethane and propane.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas consists primarily of methane (about 95%), along with ethane and propane in smaller amounts.

3. Assertion: Natural gas can occur alone or along with oil deposits under the earth’s crust.

Reason: Natural gas forms by the decomposition of vegetable matter in the absence of air.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas can be found alone or together with oil deposits, and it forms due to the decomposition of vegetable matter without air.

4. Assertion: Compressed Natural Gas (CNG) is easier to store, transport, and use compared to natural gas.

Reason: CNG is stored under high pressure.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• CNG is stored under high pressure, which makes it more compact and convenient for storage, transport, and usage.

5. Assertion: Natural gas is a fossil fuel.

Reason: It is formed from the decomposition of organic matter over millions of years.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas, like coal and petroleum, is a fossil fuel because it originates from the decomposition of organic matter over geological time.

Assertion and Reason Class 8 Science Coal and Petroleum 

6. Assertion: Petrochemicals are derived from natural gas and petroleum.

Reason: They are used in the manufacture of various products like detergents, synthetic fibers, and plastics.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Petrochemicals are obtained from natural gas and petroleum and are crucial in manufacturing detergents, synthetic fibers, plastics, and other products.

7. Assertion: Natural gas does not produce poisonous gases on burning.

Reason: It primarily consists of methane, which burns cleanly.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas, primarily methane, burns without producing poisonous gases, contributing to its status as a cleaner fuel.

8. Assertion: Natural gas is used as a domestic and industrial fuel.

Reason: It is easily accessible through a network of underground pipelines.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas is used widely as a fuel in both domestic and industrial settings, facilitated by an extensive network of underground pipelines.

9. Assertion: Natural gas is stored under high pressure to form CNG.

Reason: This makes it a convenient fuel for use in transport vehicles.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Storing natural gas under high pressure as CNG makes it suitable for use in transport vehicles due to its compact nature and ease of refueling.

Coal and petroleum assertion and reason questions

10. Assertion: Natural gas does not cause air pollution.

Reason: It burns with a smokeless flame and leaves no solid residue.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas combustion results in minimal air pollution due to its smokeless flame and lack of solid residue.

11. Assertion: Natural gas reserves have been found in various states in India.

Reason: These include Tripura, Rajasthan, Maharashtra, and the Krishna-Godavari delta.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• India has substantial natural gas reserves in states such as Tripura, Rajasthan, Maharashtra, and the Krishna-Godavari delta region.

12. Assertion: Natural gas can be used directly for heating purposes without additional processing.

Reason: It is a complete fuel with high calorific value.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas is a complete fuel with high calorific value, suitable for direct use in heating applications without additional processing.

13. Assertion: CNG is increasingly used as a fuel in vehicles to reduce urban air pollution.

Reason: It burns cleaner than petrol and diesel.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• CNG is favoured in urban areas for vehicles due to its cleaner combustion compared to petrol and diesel, thus reducing air pollution.

14. Assertion: Natural gas is a source of hydrogen gas used in fertilizer production.

Reason: Methane from natural gas is decomposed to produce hydrogen.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Hydrogen gas, crucial for fertilizer manufacture, is derived from methane found in natural gas through decomposition processes.

15. Assertion: Petrochemicals obtained from natural gas and petroleum are used in the manufacture of synthetic fibers.

Reason: Examples include polyester and nylon.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Petrochemicals play a significant role in producing synthetic fibers like polyester and nylon from natural gas and petroleum derivatives.

16. Assertion: The use of natural gas eliminates the need for additional storage and transport facilities.

Reason: It is supplied directly through underground pipelines to homes and industries.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas is distributed directly through underground pipelines, reducing the need for separate storage and transport infrastructure.

17. Assertion: The formation of natural gas is a slow process involving the decomposition of organic matter.

Reason: This process occurs over millions of years.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas forms over millions of years as organic matter decomposes under specific geological conditions.

18. Assertion: Natural gas is stored under high pressure to enhance its energy density.

Reason: This allows for efficient transportation and storage.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Storing natural gas under high pressure as CNG enhances its energy density, making it efficient for transport and storage.

Coal and petroleum assertion and reason questions with answers

19.Assertion: The burning of natural gas contributes to global warming.

Reason: It releases carbon dioxide, a greenhouse gas.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Despite being cleaner than other fossil fuels, natural gas combustion still releases carbon dioxide, contributing to global warming.

20. Assertion: Natural gas is found along with oil deposits deep under the earth’s crust.

Reason: It is formed in similar geological conditions as petroleum.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer: (a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas and oil deposits often coexist under specific geological conditions deep underground.

21.Assertion: Natural gas does not require any additives for direct use in various applications.

Reason: It has a high calorific value and burns efficiently.

(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).

(b) Both Assertion and Reason are the true but Reason (R) is not a correct explanation of Assertion (A).

(c) Assertion (A) is true and Reason (R) is false.

(d) Assertion (A) is false and Reason (R) is true.

• Answer:(a) Both Assertion and Reason are the true and Reason (R) is a correct explanation of Assertion (A).
• Natural gas is a complete fuel with a high calorific value, suitable for direct use without additives.

For more Assertion and Reason type questions and answers on Coal and Petroleum Class 8 Science