Two oxidation states for chlorine are found in the compound :

Options

A. `CaOCl_(2)`
B. `KCl`
C. `KClO_(3)`
D. `Cl_(2)O_(7)`

Answer

To solve the question regarding the oxidation states of chlorine in various compounds, we will analyze each option provided in the question. We are looking for a compound that contains two different oxidation states of chlorine.

### Step-by-Step Solution:

1. **Identify the Compounds**:
We need to examine the oxidation states of chlorine in the given compounds. Let's consider the options provided (though not explicitly listed here, we will analyze the common compounds).

2. **Analyze Compound A: Ca(OCl)₂ (Calcium Hypochlorite)**:
- In this compound, we have two chlorine atoms.
- One chlorine is part of the hypochlorite ion (OCl⁻).
- Let's assign the oxidation state of chlorine in OCl⁻ as \( x \).
- The equation for the hypochlorite ion is:
\[ x + (-2) = -1 \quad \text{(since oxygen is -2)} \]
Solving for \( x \):
\[ x - 2 = -1 \implies x = +1 \]
- Therefore, one chlorine in Ca(OCl)₂ has an oxidation state of +1.

3. **Analyze the Other Chlorine in Ca(OCl)₂**:
- The second chlorine in Ca(OCl)₂ is in the chloride ion (Cl⁻).
- The oxidation state of this chlorine is:
\[ -1 \]
- So, in Ca(OCl)₂, we have one chlorine with an oxidation state of +1 and another with -1.

4. **Analyze Other Compounds**:
- For example, in KCl (Potassium Chloride), chlorine has an oxidation state of -1.
- In ClO₃⁻ (Chlorate Ion), chlorine has an oxidation state of +5.
- In Cl₂O₇ (Dichlorine Heptoxide), chlorine has an oxidation state of +7.

5. **Conclusion**:
- The only compound where chlorine exhibits two different oxidation states is Ca(OCl)₂, with +1 and -1.

### Final Answer:
The compound in which chlorine shows two oxidation states is **Ca(OCl)₂** (Calcium Hypochlorite).

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