Oxidation state exhibited by Cl in `HClO_(2)` is

Answer

To determine the oxidation state of chlorine (Cl) in the compound HClO₂, we can follow these steps:

### Step 1: Identify the known oxidation states
- The oxidation state of hydrogen (H) is +1.
- The oxidation state of oxygen (O) is typically -2.

### Step 2: Write the formula for the oxidation state
In the compound HClO₂, we can express the sum of the oxidation states as follows:

\[ \text{Oxidation state of H} + \text{Oxidation state of Cl} + 2 \times \text{Oxidation state of O} = 0 \]

### Step 3: Substitute the known values
Substituting the known oxidation states into the equation:

\[ (+1) + X + 2 \times (-2) = 0 \]

Where \(X\) is the oxidation state of chlorine.

### Step 4: Simplify the equation
Now, simplify the equation:

\[ 1 + X - 4 = 0 \]

### Step 5: Solve for X
Rearranging the equation gives:

\[ X - 3 = 0 \]

Thus,

\[ X = +3 \]

### Conclusion
The oxidation state of chlorine in HClO₂ is +3.

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