Which of the following molecule has as `O-O` bonds?

Options

A. `H_(2)S_(2)O_(8)`
B. `H_(2)S_(2)O_(7)`
C. `H_(2)SO_(5)`
D. `H_(2)S_(2)O_(6)`

Answer

To determine which of the given molecules contains an O-O bond, we will analyze the structures of each molecule mentioned in the question.

### Step-by-Step Solution:

1. **Identify the Molecules**: The molecules we are analyzing are:
- H₂S₂O₈
- H₂S₂O₇
- H₂SO₅
- H₂S₂O₆

2. **Draw the Lewis Structures**:
- **H₂S₂O₈**:
- Sulfur (S) has 6 valence electrons, and there are 2 sulfur atoms.
- Oxygen (O) has 6 valence electrons, and there are 8 oxygen atoms.
- The structure shows that there is an O-O bond present.

- **H₂S₂O₇**:
- Similar to H₂S₂O₈, but with one less oxygen.
- Upon drawing the structure, we find that there are no O-O bonds present.

- **H₂SO₅**:
- This molecule has one sulfur and five oxygen atoms.
- Drawing the structure reveals that there are no O-O bonds present.

- **H₂S₂O₆**:
- This molecule has two sulfur atoms and six oxygen atoms.
- The structure shows that there are no O-O bonds present.

3. **Conclusion**:
- From the analysis, we find that only **H₂S₂O₈** contains an O-O bond. The other molecules do not have any O-O bonds.

### Final Answer:
The molecule that has an O-O bond is **H₂S₂O₈**.