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 has an O-O bond (peroxide linkage), we will analyze each option step by step.

### Step 1: Analyze Option A - H2S2O8 (Peroxide Disulfuric Acid)
- The structure of H2S2O8 includes two sulfur atoms and multiple oxygen atoms.
- In this structure, there is a single bond between two oxygen atoms (O-O), which indicates the presence of a peroxide linkage.
- Therefore, H2S2O8 has an O-O bond.

### Step 2: Analyze Option B - H2S2O7 (Pyrosulphuric Acid)
- The structure of H2S2O7 consists of sulfur atoms bonded to oxygen atoms, but all oxygen atoms are involved in double bonds or hydroxyl groups.
- There is no single bond between any two oxygen atoms in this structure.
- Hence, H2S2O7 does not have an O-O bond.

### Step 3: Analyze Option C - H2SO5 (Carose Acid or Peroxomonosulphuric Acid)
- The structure of H2SO5 includes a sulfur atom bonded to multiple oxygen atoms.
- In this case, there is a single bond between two oxygen atoms (O-O), indicating a peroxide linkage.
- Therefore, H2SO5 has an O-O bond.

### Step 4: Analyze Option D - H2S2O6 (Diethionic Acid)
- The structure of H2S2O6 consists of sulfur atoms bonded to oxygen atoms, but similar to option B, all oxygen atoms are involved in double bonds or hydroxyl groups.
- There is no single bond between any two oxygen atoms in this structure.
- Thus, H2S2O6 does not have an O-O bond.

### Conclusion:
Based on the analysis:
- **Option A (H2S2O8)** and **Option C (H2SO5)** have O-O bonds (peroxide linkages).
- **Options B (H2S2O7)** and **D (H2S2O6)** do not have O-O bonds.

### Final Answer:
The molecules that have O-O bonds are **H2S2O8** and **H2SO5**.

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