Which of the following compound(s) contains(s) N-N bond?

Options

A. `N_(2)O_(3)`
B. `N_(2)O_(5)`
C. `N_(3)H`
D. `N_(2)O_(4)`

Answer

To determine which of the given compounds contains an N-N bond, we will analyze each compound step by step.

### Step 1: Analyze N2O3
- **Structure**: The molecular formula is N2O3.
- **Drawing the structure**:
- Nitrogen atoms are bonded to each other and to oxygen atoms.
- The structure can be represented as:
```
O
||
N - N
||
O
|
O
```
- **Conclusion**: N2O3 contains an N-N bond.

### Step 2: Analyze N2O5
- **Structure**: The molecular formula is N2O5.
- **Drawing the structure**:
- The structure can be represented as:
```
O
||
N - O - N
|| ||
O O
```
- **Conclusion**: N2O5 does not contain an N-N bond.

### Step 3: Analyze N3H
- **Structure**: The molecular formula is N3H (Hydrazine).
- **Drawing the structure**:
- The structure can be represented as:
```
H - N = N = N - H
```
- **Conclusion**: N3H contains N-N bonds, but they are double bonds, not single bonds.

### Step 4: Analyze N2O4
- **Structure**: The molecular formula is N2O4.
- **Drawing the structure**:
- The structure can be represented as:
```
O
||
N - N
||
O
|
O
```
- **Conclusion**: N2O4 contains an N-N bond.

### Final Conclusion
Based on the analysis:
- **N2O3**: Contains N-N bond.
- **N2O5**: Does not contain N-N bond.
- **N3H**: Contains N-N bonds (double bonds).
- **N2O4**: Contains N-N bond.

Thus, the compounds that contain N-N bonds are **N2O3 and N2O4**.