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 and to identify the incorrect statement about gas P, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reaction**:
The reaction given is:
\[ \text{Zn} + \text{HNO}_3 \text{(dilute)} \rightarrow \text{Zn(NO}_3\text{)}_2 + \text{P} \]
Here, gas P is produced along with zinc nitrate.

2. **Determine the Identity of Gas P**:
When zinc reacts with dilute nitric acid, the gas produced is nitrous oxide (N2O), also known as laughing gas.

3. **Analyze the Statements**:
We need to evaluate the following statements about gas P (N2O):
- **Statement 1**: It gives a neutral solution in water.
- **Statement 2**: It contains more oxygen than air.
- **Statement 3**: It forms a brown ring with ferrous sulfate solution.
- **Statement 4**: None of these.

4. **Evaluate Each Statement**:
- **Statement 1**: N2O is a neutral gas and does not affect the pH of water significantly. Thus, it gives a neutral solution. **(True)**
- **Statement 2**: The molecular formula of N2O indicates that it contains one oxygen atom. In comparison, air contains approximately 21% oxygen. Therefore, N2O does contain more oxygen by volume than air. **(True)**
- **Statement 3**: The brown ring test is characteristic of nitric oxide (NO), not nitrous oxide (N2O). N2O does not form a brown ring with ferrous sulfate solution. **(False)**
- **Statement 4**: This option states that none of the previous statements are correct, which is not true since the first two statements are correct.

5. **Conclusion**:
The incorrect statement about gas P is **Statement 3**: "It forms a brown ring with ferrous sulfate solution."

### Final Answer:
The incorrect statement about gas P is **Statement 3**.