Which is/are correct statements about `P_4O_6` and `P_4O_10` :

Options

A. In `P_4O_6` each `P` is joined to three `O` and in `P_4O_10` each `P` is linked to four `O` atoms.
B. Both `(a)` and `(b)` form oxoacids `H_3PO_3` and `H_3PO_4` respectively.
C. Both `(a)` and `(b)`
D. None

Answer

To determine the correct statements about \( P_4O_6 \) and \( P_4O_{10} \), we will analyze each statement step by step.

### Step 1: Analyze the structure of \( P_4O_6 \)

1. **Understanding the structure**:
- \( P_4O_6 \) consists of 4 phosphorus (P) atoms and 6 oxygen (O) atoms.
- Each phosphorus atom in \( P_4O_6 \) is bonded to 3 oxygen atoms.
- The structure can be visualized as a tetrahedral arrangement where each phosphorus atom is connected to three oxygen atoms and has one lone pair.

2. **Conclusion**:
- The statement "In \( P_4O_6 \), each phosphorus is joined to 3 oxygen atoms" is **true**.

### Step 2: Analyze the structure of \( P_4O_{10} \)

1. **Understanding the structure**:
- \( P_4O_{10} \) consists of 4 phosphorus atoms and 10 oxygen atoms.
- In this structure, each phosphorus atom is bonded to 4 oxygen atoms, including one double bond with oxygen.

2. **Conclusion**:
- The statement "In \( P_4O_{10} \), each phosphorus is linked to 4 oxygen atoms" is **true**.

### Step 3: Check the formation of oxoacids

1. **Reactions with water**:
- \( P_4O_6 \) reacts with water to form \( H_3PO_3 \) (phosphorous acid), which is an oxoacid.
- \( P_4O_{10} \) reacts with water to form \( H_3PO_4 \) (phosphoric acid), which is also an oxoacid.

2. **Conclusion**:
- The statement "Both \( P_4O_6 \) and \( P_4O_{10} \) form oxoacids \( H_3PO_3 \) and \( H_3PO_4 \) respectively" is **true**.

### Final Conclusion

Since all analyzed statements are true, the correct answer to the question is that both statements A and B are correct.

### Summary of Correct Statements:
1. In \( P_4O_6 \), each phosphorus is joined to 3 oxygen atoms. (True)
2. In \( P_4O_{10} \), each phosphorus is linked to 4 oxygen atoms. (True)
3. Both \( P_4O_6 \) and \( P_4O_{10} \) form oxoacids \( H_3PO_3 \) and \( H_3PO_4 \) respectively. (True)

### Final Answer:
The answer is **both A and B are correct**.

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