Assertion. HOF bond angle is higher than HOCl bond angle in HOX.
Reason. Oxygen is more electronegative than halogens.

Options

A. If both assertion and reason are true, and reason is the correct explanation of the assertion.
B. If both assertion and reason are ture, but reason is not the correct explanantion of the assertion.
C. If assertion is true, but reason is false.
D. If both assertion and reason are false

Explanation

To solve the assertion and reason question, we need to analyze both the assertion and the reason provided.

### Step 1: Understand the Assertion
The assertion states that the bond angle in HOF (hypofluorous acid) is higher than in HOCl (hypochlorous acid).

**Hint:** Consider the molecular geometry and the factors affecting bond angles in these compounds.

### Step 2: Analyze the Bond Angles
In HOF, the bond angle is influenced by the presence of the highly electronegative fluorine atom. In HOCl, the chlorine atom is less electronegative than fluorine. The bond angle in HOF is approximately 104.5° while in HOCl, it is around 97.2°.

**Hint:** Recall that the presence of more electronegative atoms can lead to greater repulsion between bonding pairs of electrons, which can increase bond angles.

### Step 3: Understand the Reason
The reason states that oxygen is more electronegative than halogens. This is not entirely accurate. While oxygen is indeed electronegative, chlorine is more electronegative than oxygen. The order of electronegativity is F > Cl > O > Br > I.

**Hint:** Review the electronegativity values of the elements involved to clarify their relative strengths.

### Step 4: Conclusion
Both the assertion and the reason are incorrect. The assertion that HOF has a higher bond angle than HOCl is true, but the reason provided is false because it incorrectly states the electronegativity order.

**Hint:** Remember that for an assertion-reason question, both parts must be evaluated for truthfulness.

### Final Answer
- **Assertion:** True (HOF bond angle is higher than HOCl)
- **Reason:** False (Oxygen is not more electronegative than chlorine)

### Summary
- The assertion is true because the bond angle in HOF is indeed higher than in HOCl due to the presence of the more electronegative fluorine atom.
- The reason is false because chlorine is more electronegative than oxygen, which does not support the assertion.