Which of the following statements is not correct?

Options

A. All the oxides of halogens are powerful oxidants.
B. The compounds of oxygen and fluorine are not called oxides but fluorides.
C. Oxygen fluorides form oxoacids.
D. In oxyhalides, bonds are mainly covalent due to small difference in electronegativity of oxygen and halogens.

Answer

To determine which statement is not correct among the given options, let's analyze each statement step by step.

### Step 1: Analyze the first statement
**Statement 1:** All oxides of halogens are powerful oxidants.
- **Explanation:** Halogens are highly electronegative elements, and their oxides typically exhibit strong oxidizing properties. Therefore, this statement is correct.

### Step 2: Analyze the second statement
**Statement 2:** The compounds of oxygen and fluorine are not oxides but fluorides.
- **Explanation:** In compounds formed between oxygen and fluorine, fluorine is more electronegative than oxygen. As a result, these compounds behave more like fluorides than oxides. This statement is also correct.

### Step 3: Analyze the third statement
**Statement 3:** Oxygen fluorides form oxoacids.
- **Explanation:** Oxygen fluorides, such as OF2, do not form oxoacids upon hydrolysis. Instead, they typically yield hydrogen fluoride (HF) and oxygen. This statement is incorrect.

### Step 4: Analyze the fourth statement
**Statement 4:** In oxyhalides, bonds are mainly covalent due to the small difference in electronegativity of oxygen and halogens.
- **Explanation:** Oxyhalides do exhibit covalent bonding characteristics, primarily due to the relatively small difference in electronegativity between oxygen and halogens. This statement is correct.

### Conclusion
Based on the analysis, the statement that is not correct is **Statement 3**: "Oxygen fluorides form oxoacids."

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