Which of the following compound can form hydrogen bonds

Options

A. `CH_4`
B. NaCl
C. `CHCl_(3)`
D. `H_2O`

Explanation

To determine which of the given compounds can form hydrogen bonds, we need to analyze each option based on the presence of hydrogen atoms bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine.

### Step-by-Step Solution:

1. **Identify the Compounds**:
Let's list the compounds provided in the question. For this example, we will consider:
- Option 1: CH4 (Methane)
- Option 2: NaCl (Sodium Chloride)
- Option 3: CHCl3 (Chloroform)
- Option 4: H2O (Water)

2. **Understanding Hydrogen Bonds**:
Hydrogen bonds typically occur when hydrogen is bonded to highly electronegative atoms such as oxygen (O), nitrogen (N), or fluorine (F). These electronegative atoms create a significant dipole moment, allowing hydrogen to interact with lone pairs of electrons on other electronegative atoms.

3. **Analyze Each Compound**:
- **CH4 (Methane)**:
- Methane has hydrogen atoms bonded to carbon, which is not highly electronegative. Therefore, it cannot form hydrogen bonds.
- **NaCl (Sodium Chloride)**:
- NaCl is an ionic compound and does not have hydrogen atoms bonded to electronegative atoms. Thus, it cannot form hydrogen bonds.
- **CHCl3 (Chloroform)**:
- Chloroform has hydrogen atoms, but they are bonded to carbon, and while chlorine is electronegative, it does not create the necessary conditions for hydrogen bonding as there is no highly electronegative atom (like O, N, or F) directly bonded to hydrogen.
- **H2O (Water)**:
- Water has hydrogen atoms bonded to oxygen, which is highly electronegative. This allows for the formation of hydrogen bonds both within water molecules and with other molecules.

4. **Conclusion**:
Based on the analysis, the only compound that can form hydrogen bonds is **H2O (Water)**.

### Final Answer:
The compound that can form hydrogen bonds is **H2O (Water)**.