`H_(2)O_(2)` can be obtained when following reacts with `H_(2)SO_(4)` excepts with

Options

A. `PbO_(2)`
B. `BaO_(2)`
C. `Na_(2)O_(2)`
D. `SrO_(2)`

Answer

To solve the question of which compound does not produce hydrogen peroxide (H₂O₂) when reacting with sulfuric acid (H₂SO₄), we can analyze the given options: lead dioxide (PbO₂), barium peroxide (BaO₂), sodium peroxide (Na₂O₂), and strontium peroxide (SrO₂).

### Step-by-Step Solution:

1. **Understanding the Compounds:**
- **Lead Dioxide (PbO₂):** This compound contains lead in the +4 oxidation state and does not have a peroxide linkage (O₂²⁻). Therefore, it does not produce H₂O₂ when reacted with H₂SO₄.
- **Barium Peroxide (BaO₂):** This compound contains the peroxide linkage (O₂²⁻) and will yield H₂O₂ when reacted with H₂SO₄.
- **Sodium Peroxide (Na₂O₂):** Similar to barium peroxide, sodium peroxide also contains the peroxide linkage and will produce H₂O₂ upon reaction with H₂SO₄.
- **Strontium Peroxide (SrO₂):** This compound also contains the peroxide linkage and will yield H₂O₂ when reacted with H₂SO₄.

2. **Analyzing the Reactions:**
- **Reaction of Lead Dioxide with H₂SO₄:**
\[ \text{PbO}_2 + \text{H}_2\text{SO}_4 \rightarrow \text{PbSO}_4 + \text{O}_2 + \text{H}_2\text{O} \]
(No H₂O₂ is produced)

- **Reaction of Barium Peroxide with H₂SO₄:**
\[ \text{BaO}_2 + \text{H}_2\text{SO}_4 \rightarrow \text{BaSO}_4 + \text{H}_2\text{O}_2 \]
(H₂O₂ is produced)

- **Reaction of Sodium Peroxide with H₂SO₄:**
\[ \text{Na}_2\text{O}_2 + \text{H}_2\text{SO}_4 \rightarrow \text{Na}_2\text{SO}_4 + \text{H}_2\text{O}_2 \]
(H₂O₂ is produced)

- **Reaction of Strontium Peroxide with H₂SO₄:**
\[ \text{SrO}_2 + \text{H}_2\text{SO}_4 \rightarrow \text{SrSO}_4 + \text{H}_2\text{O}_2 \]
(H₂O₂ is produced)

3. **Conclusion:**
Based on the analysis, lead dioxide (PbO₂) does not produce hydrogen peroxide when reacted with sulfuric acid, while the other compounds do.

### Final Answer:
The compound that does not produce H₂O₂ when reacting with H₂SO₄ is **Lead Dioxide (PbO₂)**.

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