The oxidation state of iodine in `ICI_(3)` is

Options

A. `+1`
B. `+3`
C. `+5`
D. `+7`

Answer

To determine the oxidation state of iodine in the compound ICl₃, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Oxidation States of Known Elements**:
- In ICl₃, chlorine (Cl) typically has an oxidation state of -1.

2. **Set Up the Equation**:
- Let the oxidation state of iodine (I) be represented as \( x \).
- Since there are three chlorine atoms in the compound, their total contribution to the oxidation state will be \( 3 \times (-1) = -3 \).

3. **Write the Overall Charge Equation**:
- The overall charge of the compound ICl₃ is neutral (0). Therefore, we can set up the equation:
\[ x + 3(-1) = 0 \]

4. **Simplify the Equation**:
- This simplifies to:
\[ x - 3 = 0 \]

5. **Solve for \( x \)**:
- Adding 3 to both sides gives:
\[ x = +3 \]

6. **Conclusion**:
- The oxidation state of iodine in ICl₃ is +3.

### Final Answer:
The oxidation state of iodine in ICl₃ is +3.

---