Consider the following reaction and select incorrect statement about gas (P):
`Zn+HNO_(3)("Dilute")toZn(NO_(3))_(2)+Puarr`

Options

A. Gives neutral solution in water
B. Contains more `O_(2)` than Air
C. Forms brownn ring with `FeSO_(4)` solution
D. None of these

Explanation

To solve the question regarding the reaction of zinc with dilute nitric acid, we need to analyze the statements about the gas (P) produced in the reaction. The reaction is as follows:

\[ \text{Zn} + \text{HNO}_3 \text{(dilute)} \rightarrow \text{Zn(NO}_3\text{)}_2 + \text{P} \]

1. **Identify the gas produced (P)**:
- In this reaction, the gas produced (P) is identified as nitrous oxide (N2O).

2. **Evaluate the statements**:
- **Statement A**: "It gives a neutral solution with water."
- This statement is **correct** because N2O is neutral in nature when dissolved in water.

- **Statement B**: "It contains more O2 than air."
- This statement is also **correct**. N2O contains about 33% oxygen, while air contains about 21% oxygen, indicating that N2O has a higher percentage of oxygen than air.

- **Statement C**: "It forms a brown ring with FeSO4 solution."
- This statement is **incorrect**. The brown ring test is used to detect the presence of nitrous oxide (NO) or nitrogen dioxide (NO2), not nitrous oxide (N2O). Therefore, N2O does not form a brown ring with FeSO4.

3. **Conclusion**:
- The incorrect statement about gas P (N2O) is that it forms a brown ring with FeSO4 solution.

### Final Answer:
The incorrect statement about gas P is: "It forms a brown ring with FeSO4 solution."