Maximum P-O-P linkage present in :-

Options

A. `P_(4)O_(6)`
B. `P_(4)O_(10)`
C. `(HPO_(3))_(3)`
D. same for (1) & (2)

Explanation

To determine which compound has the maximum P-O-P linkage, we will analyze each of the given compounds: P4O6, P4O10, and HPO3. We will draw their structures and count the number of P-O-P bonds (linkages) in each.

### Step-by-Step Solution:

1. **Analyze P4O6:**
- The structure of P4O6 can be represented as follows:
```
O
|
P - O - P
| |
O O
| |
P - O - P
|
O
```
- In this structure, we can identify the P-O-P linkages. Counting these, we find there are **6 P-O-P linkages**.

2. **Analyze P4O10:**
- The structure of P4O10 can be represented as follows:
```
O
|
P = O
|
P - O - P
| |
O O
| |
P = O
|
O
```
- Here, we again count the P-O-P linkages. There are also **6 P-O-P linkages** in this compound.

3. **Analyze HPO3:**
- The structure of HPO3 (phosphoric acid) can be represented as follows:
```
O
||
O - P - O - H
|
O
```
- In this case, we can see that there are **3 P-O-P linkages**.

4. **Comparison of P-O-P Linkages:**
- From our analysis:
- P4O6 has 6 P-O-P linkages.
- P4O10 has 6 P-O-P linkages.
- HPO3 has 3 P-O-P linkages.
- Therefore, P4O6 and P4O10 both have the maximum number of P-O-P linkages, which is 6.

5. **Conclusion:**
- Since both P4O6 and P4O10 have the same maximum number of P-O-P linkages, the correct answer is option D: "It is same for both 1 and 2."

### Final Answer:
**Option D: It is same for both 1 and 2.**

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