Which of the following is correct statement ?

Options

A. `F_(2)` has higher dissociation energy than `Cl_(2)`
B. F has higher electron affinity than `Cl`
C. `HF` is stronger acid than `HCl`
D. Boling point increases down the group in halogens

Answer

To solve the question "Which of the following is the correct statement?" we will analyze each option provided and determine which one is accurate based on our understanding of chemistry, particularly focusing on the properties of halogens and their compounds.

### Step-by-Step Solution:

1. **Analyze Option 1:**
- The statement claims that fluorine (F2) has a higher dissociation energy than chlorine (Cl2).
- **Evaluation:** This statement is incorrect. The bond dissociation energy of Cl2 is actually higher than that of F2. This is due to the high electronegativity of fluorine, which leads to significant repulsion between the lone pairs of electrons on the two fluorine atoms, making the bond weaker.

2. **Analyze Option 2:**
- The statement claims that chlorine has a higher electron affinity than fluorine.
- **Evaluation:** This statement is also incorrect. Fluorine has a higher electron affinity than chlorine because of its higher electronegativity. Fluorine can attract electrons more effectively than chlorine, leading to a greater electron affinity.

3. **Analyze Option 3:**
- The statement claims that HF is a stronger acid than HCl.
- **Evaluation:** This statement is incorrect. HCl is a stronger acid than HF. The acidity of a compound depends on the bond strength and polarity. The bond strength of H-F is stronger than H-Cl, making it harder for HF to donate a proton (H+). Therefore, HCl is a stronger acid.

4. **Analyze Option 4:**
- The statement claims that the boiling point increases down the group in halogens.
- **Evaluation:** This statement is correct. As we move down the group in the periodic table, the size of the halogen atoms increases, which leads to an increase in Van der Waals forces. This results in higher boiling points for the heavier halogens compared to the lighter ones.

### Conclusion:
The correct statement among the options provided is **Option 4: Boiling point increases down the group in halogens.**