A : `CO_2` is a Lewis acid.
R : `H_2SO_4` is Arrhenius acid as well as Bronsted acid.

Options

A. If both Assertion & Reason are true and the reason in the corret explanation of the assertion, then mark
B. If both assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark
C. If Assertion is true statement but Reason is false then mark
D. If both Assertion and Reason are false statements , then mark

Answer

To solve the question regarding the assertion and reasoning provided, we will analyze both statements step by step.

### Step 1: Analyze the Assertion
**Assertion (A):** CO₂ is a Lewis acid.

- **Definition of Lewis Acid:** A Lewis acid is defined as a species that can accept an electron pair from a Lewis base.
- **Analysis of CO₂:** Carbon dioxide (CO₂) has a central carbon atom that is capable of accepting electron pairs due to its empty p-orbitals. When CO₂ interacts with a Lewis base, it can accept an electron pair, making it a Lewis acid.

**Conclusion for Assertion:** The assertion that CO₂ is a Lewis acid is **correct**.

### Step 2: Analyze the Reasoning
**Reason (R):** H₂SO₄ is an Arrhenius acid as well as a Brønsted acid.

- **Definition of Arrhenius Acid:** An Arrhenius acid is a substance that increases the concentration of H⁺ ions in aqueous solution.
- **Analysis of H₂SO₄:** When sulfuric acid (H₂SO₄) is dissolved in water, it dissociates to produce H⁺ ions:
\[ H₂SO₄ \rightarrow 2H^+ + SO₄^{2-} \]
This confirms that H₂SO₄ is indeed an Arrhenius acid.

- **Definition of Brønsted Acid:** A Brønsted acid is a substance that donates protons (H⁺ ions).
- **Analysis of H₂SO₄:** H₂SO₄ donates H⁺ ions, thus acting as a Brønsted acid.

**Conclusion for Reasoning:** The reasoning that H₂SO₄ is both an Arrhenius acid and a Brønsted acid is **correct**.

### Step 3: Determine the Relationship Between Assertion and Reasoning
- While both the assertion and reasoning are correct, the reasoning does not provide a correct explanation for the assertion. The assertion discusses CO₂ as a Lewis acid, while the reasoning discusses H₂SO₄'s properties as an Arrhenius and Brønsted acid, which are unrelated to the classification of CO₂.

### Final Conclusion
Both the assertion and reasoning are correct, but the reasoning does not correctly explain the assertion. Therefore, the correct answer is:

**Option 2:** Both assertion and reason are correct, but the reason is not the correct explanation of the assertion.

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