The answer to each of the following is a non-negative intcger.
The sum of the oxidation states of Cl atoms in bleach- ing powder of formula Ca(OCI)Cl is……….

Answer

To find the sum of the oxidation states of chlorine atoms in bleaching powder (Ca(OCl)Cl), we can follow these steps:

### Step 1: Identify the components of the compound
The formula for bleaching powder is Ca(OCl)Cl. This means it contains:
- One calcium (Ca) atom
- One hypochlorite ion (OCl)
- One chlorine (Cl) atom

### Step 2: Assign oxidation states
1. **Calcium (Ca)**: Calcium typically has an oxidation state of +2.
2. **Oxygen (O)**: Oxygen typically has an oxidation state of -2.
3. **Chlorine in hypochlorite (OCl)**:
- In the hypochlorite ion (OCl), the oxidation state of oxygen is -2.
- Let the oxidation state of chlorine in hypochlorite be x. The sum of oxidation states in the hypochlorite ion must equal the charge of the ion, which is -1. Therefore:
\[ x + (-2) = -1 \implies x = +1 \]
- So, the oxidation state of chlorine in the hypochlorite ion is +1.

4. **Chlorine (Cl)**: The other chlorine atom (the one not in the hypochlorite ion) is in the elemental form, which has an oxidation state of 0.

### Step 3: Sum the oxidation states of chlorine
Now, we have two chlorine atoms:
- One chlorine from the hypochlorite ion with an oxidation state of +1.
- One elemental chlorine with an oxidation state of 0.

The sum of the oxidation states of the chlorine atoms is:
\[ +1 + 0 = +1 \]

### Final Answer
The sum of the oxidation states of Cl atoms in bleaching powder (Ca(OCl)Cl) is **1**.

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