Question

Assertion (A): Carbon and its compounds are our major sources of fuels. 
Reason (R): Most of the carbon compounds on burning release a large amount of heat and light.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
• B. Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

Carbon compounds, when burned, undergo combustion, releasing heat and light due to their high energy content, making them essential as fuel sources.

Answer 1

The Correct Option is A

Step 1: Assertion (A). Carbon and its compounds (e.g., fossil fuels like coal and petroleum) are key energy sources, utilized for heat and power via combustion.
Step 2: Reason (R). Burning carbon compounds, such as hydrocarbons, produces considerable heat and light because of the energy within their chemical bonds. 
Step 3: Conclusion. Assertion (A) and Reason (R) are both accurate, with Reason (R) explaining why carbon compounds are major fuel sources. Thus, the answer is option (A).