Determine the oxidation number of the element as indicated
Cr in `CrO_2Cl_2`

Explanation

To determine the oxidation number of chromium (Cr) in the compound \( \text{CrO}_2\text{Cl}_2 \), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the oxidation states of known elements**:
- Oxygen (O) typically has an oxidation state of -2.
- Chlorine (Cl) typically has an oxidation state of -1 when it is not bonded to a more electronegative element.

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