Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Hydrogen is an environment friendly fuel.
Reason R: Atomic number of hydrogen is 1 and it is a very light element.
In the light of the above statements, choose the correct answer from the options given below

Options

A. Both A and R are true and R is the correct explanation of A
B. A is true but R is false
C. A is false but R is true
D. Both A and R are true but R is NOT the correct explanation of A

Answer

To analyze the given statements, we need to evaluate both the Assertion (A) and the Reason (R) separately.

### Step 1: Evaluate the Assertion (A)
**Assertion A:** Hydrogen is an environment-friendly fuel.

- Hydrogen is considered an environment-friendly fuel because when it is used in fuel cells or combustion, it primarily produces water as a byproduct. It does not emit harmful pollutants or greenhouse gases, making it a clean energy source.

### Step 2: Evaluate the Reason (R)
**Reason R:** The atomic number of hydrogen is 1 and it is a very light element.

- The atomic number of hydrogen is indeed 1, which means it has one proton in its nucleus. Additionally, hydrogen is the lightest element in the periodic table. However, while this fact is true, it does not directly explain why hydrogen is considered an environment-friendly fuel.

### Step 3: Analyze the Relationship Between A and R
- Both the assertion and the reason are true statements. However, the reason provided does not adequately explain the assertion. The environmental friendliness of hydrogen as a fuel is due to its combustion products and lack of pollutants, not merely because it is the lightest element or has an atomic number of 1.

### Conclusion
Based on the evaluation:
- **Assertion A is true.**
- **Reason R is true.**
- **However, R does not provide a correct explanation for A.**

Thus, the correct answer is that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.

### Final Answer
The correct option is: **Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.**

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