Which of the following oxyacid contains both P-H and P-P bond simultaneously?

Options

A. `H_(4)P_(2)O_(5)`
B. `H_(4)O_(2)O_(7)`
C. `H_(4)O_(2)O_(6)`
D. none

Answer

To determine which oxyacid contains both P-H and P-P bonds simultaneously, we need to analyze the structures of the given oxyacids. Let's go through the steps to find the answer.

### Step 1: Identify the Oxyacids
We need to consider the oxyacids that are likely candidates for having both P-H and P-P bonds. The options provided in the question are likely to be H4P2O5, H4P2O6, and H4P2O7.

### Step 2: Draw the Structures
We will draw the structures for each of the oxyacids to identify the types of bonds present.

1. **H4P2O5**:
- Structure: P=O, P=O, P-OH, P-OH, P-OH
- This structure shows that there are P-H bonds (from the P-OH groups) and P-P bonds (between the two phosphorus atoms).

2. **H4P2O6**:
- Structure: P=O, P=O, P-OH, P-OH, P-OH
- This structure also shows P-H bonds (from the P-OH groups) and P-P bonds.

3. **H4P2O7**:
- Structure: P=O, P=O, P-OH, P-OH, P-OH
- This structure shows P-H bonds (from the P-OH groups) and P-P bonds.

### Step 3: Analyze the Bonds
Now we need to analyze the bonds in each structure:
- **H4P2O5**: Contains both P-H (from P-OH) and P-P bonds.
- **H4P2O6**: Contains both P-H (from P-OH) and P-P bonds.
- **H4P2O7**: Contains both P-H (from P-OH) and P-P bonds.

### Step 4: Conclusion
Based on the structures analyzed, both H4P2O5 and H4P2O6 contain both P-H and P-P bonds. However, the question may be looking for a specific oxyacid that is widely recognized for containing both types of bonds.

### Final Answer
The oxyacid that contains both P-H and P-P bonds simultaneously is **H4P2O5**.