Which of the following compounds has the smallest bond angle?

Options

A. `H_(2)O`
B. `H_(2)S`
C. `NH_(3)`
D. `CO_(2)`

Explanation

To determine which of the compounds has the smallest bond angle, we will analyze the bond angles of each compound: H2O, H2S, NH3, and CO2.

### Step-by-Step Solution:

1. **Identify the Compounds and Their Structures:**
- **H2O (Water):** Oxygen is the central atom with two hydrogen atoms bonded to it. It has two lone pairs of electrons.
- **H2S (Hydrogen Sulfide):** Sulfur is the central atom with two hydrogen atoms bonded to it. It also has two lone pairs of electrons.
- **NH3 (Ammonia):** Nitrogen is the central atom with three hydrogen atoms bonded to it. It has one lone pair of electrons.
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