The most acidic oxide for nitrogen is

Options

A. `NO_(2)`
B. `N_(2)O`
C. `NO`
D. `N_(2)O_(5)`

Explanation

To determine the most acidic oxide of nitrogen, we need to analyze the oxidation states of nitrogen in the given oxides. The oxides provided are NO2, N2O, NO, and N2O5.

### Step-by-Step Solution:

1. **Identify the Oxides**: The oxides of nitrogen we are considering are:
- NO2 (Nitrogen Dioxide)
- N2O (Dinitrogen Monoxide)
- NO (Nitric Oxide)
- N2O5 (Dinitrogen Pentoxide)

2. **Calculate the Oxidation State of Nitrogen in Each Oxide**:
- **For NO2**:
- Let the oxidation state of nitrogen be \( x \).
- The equation based on the oxidation states is:
\[ x + 2(-2) = 0 \quad \text{(since oxygen has an oxidation state of -2)} \]
\[ x - 4 = 0 \implies x = +4 \]

- **For N2O**:
- Let the oxidation state of nitrogen be \( x \).
- The equation is:
\[ 2x + (-2) = 0 \]
\[ 2x - 2 = 0 \implies 2x = 2 \implies x = +1 \]

- **For NO**:
- Let the oxidation state of nitrogen be \( x \).
- The equation is:
\[ x + (-2) = 0 \]
\[ x - 2 = 0 \implies x = +2 \]

- **For N2O5**:
- Let the oxidation state of nitrogen be \( x \).
- The equation is:
\[ 2x + 5(-2) = 0 \]
\[ 2x - 10 = 0 \implies 2x = 10 \implies x = +5 \]

3. **Compare the Oxidation States**:
- NO2: +4
- N2O: +1
- NO: +2
- N2O5: +5

4. **Determine the Most Acidic Oxide**:
- The acidity of an oxide generally increases with the oxidation state of the central atom. Therefore, the oxide with the highest oxidation state of nitrogen will be the most acidic.
- From our calculations, N2O5 has the highest oxidation state of +5.

5. **Conclusion**:
- The most acidic oxide of nitrogen is **N2O5**.