The molecule with the highest dipole moment among the following is

Options

A. `NH_3`
B. `NF_3`
C. `CO`
D. `HF`

Explanation

To determine which molecule has the highest dipole moment among the given options, we can follow these steps:

### Step 1: Understand Dipole Moment
The dipole moment is a measure of the separation of positive and negative charges in a molecule. It depends on two factors: the charge difference between the atoms and the distance between the charges. The greater the difference in electronegativity between the two atoms in a bond, the larger the dipole moment.

### Step 2: Identify the Molecules
List the molecules provided in the question. For this example, let's assume the molecules are:
1. NH₃ (Ammonia)
2. H₂O (Water)
3. HF (Hydrogen Fluoride)
4. CO (Carbon Monoxide)

### Step 3: Determine Electronegativity Values
Next, we need to find the electronegativity values of the atoms involved in each molecule:
- Nitrogen (N): 3.0
- Hydrogen (H): 2.1
- Oxygen (O): 3.5
- Fluorine (F): 4.0
- Carbon (C): 2.5

### Step 4: Calculate Electronegativity Differences
Now, calculate the electronegativity differences for each molecule:
1. **NH₃**: |3.0 - 2.1| = 0.9
2. **H₂O**: |3.5 - 2.1| = 1.4
3. **HF**: |4.0 - 2.1| = 1.9
4. **CO**: |2.5 - 3.5| = 1.0

### Step 5: Analyze the Results
From the electronegativity differences calculated:
- NH₃: 0.9
- H₂O: 1.4
- HF: 1.9
- CO: 1.0

The highest electronegativity difference is in HF (1.9).

### Step 6: Conclusion
Since the dipole moment is directly proportional to the electronegativity difference, HF will have the highest dipole moment among the given molecules.

### Final Answer
The molecule with the highest dipole moment is **HF (Hydrogen Fluoride)**.

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