Select odd one out from the following and justify your answer.
`HCl, CO_(2),H_(2)S,SO_(2)`

Explanation

To solve the problem of selecting the odd one out from the given compounds: HCl, CO₂, H₂S, and SO₂, we will analyze the properties of each compound.

### Step-by-Step Solution:

1. **Identify the Nature of Each Compound:**
- **HCl (Hydrochloric Acid):** This is a strong acid. It completely dissociates in water to produce H⁺ and Cl⁻ ions.
- **CO₂ (Carbon Dioxide):** This is a non-metal oxide and when it reacts with water, it forms carbonic acid (H₂CO₃), which is a weak acid.
- **H₂S (Hydrogen Sulfide):** This compound is also a weak acid. It partially dissociates in water to produce H⁺ and HS⁻ ions.
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