Resonance structures can be written for .

Options

A. `O_(3)`
B. `NH_(3)`
C. `CH_(4)`
D. `H_(2)O`

Explanation

To determine which of the given compounds can have resonance structures, we need to analyze the molecular structures of each compound. Resonance structures are typically found in molecules that have multiple bonds (double or triple bonds) or lone pairs that can participate in bonding. Let's go through the compounds one by one.

### Step-by-Step Solution:

1. **Identify the Compounds**: The compounds given are:
- Ozone (O₃)
- Ammonia (NH₃)
- Methane (CH₄)
- Water (H₂O)

2. **Draw the Lewis Structure for Ozone (O₃)**:
- Ozone consists of three oxygen atoms.
- The structure can be represented as O=O-O, where one bond is a double bond and the other is a single bond.
- The central oxygen has one lone pair, while the terminal oxygens have three lone pairs each.
- This structure allows for resonance because the double bond can shift between the two terminal oxygens.

3. **Draw the Lewis Structure for Ammonia (NH₃)**:
- Ammonia consists of one nitrogen atom bonded to three hydrogen atoms.
- The nitrogen has one lone pair.
- The structure is stable and does not have any multiple bonds, hence it does not exhibit resonance.

4. **Draw the Lewis Structure for Methane (CH₄)**:
- Methane consists of one carbon atom bonded to four hydrogen atoms.
- There are no lone pairs or multiple bonds in this structure.
- Therefore, methane does not exhibit resonance.

5. **Draw the Lewis Structure for Water (H₂O)**:
- Water consists of one oxygen atom bonded to two hydrogen atoms.
- The oxygen has two lone pairs.
- Similar to ammonia and methane, water does not have multiple bonds, so it does not exhibit resonance.

6. **Conclusion**:
- Among the four compounds, only ozone (O₃) has resonance structures due to the presence of a double bond that can shift between the terminal oxygen atoms.
- Ammonia, methane, and water do not have resonance structures.

### Final Answer:
Resonance structures can be written for **Ozone (O₃)** only.