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: Understanding Assertion (A). Carbon and its compounds, such as fossil fuels (coal, petroleum), are major sources of energy and have been used for combustion for heat and power. 
Step 2: Understanding Reason (R). The burning of carbon compounds like hydrocarbons releases a significant amount of heat and light due to the energy stored in the chemical bonds. 
Step 3: Conclusion. Both Assertion (A) and Reason (R) are true, and Reason (R) correctly explains why carbon compounds are major fuel sources. Hence, the correct answer is option (A).