The normal oxide contains______ion, peroxide contains_____ion and superoxide contains____ion.

Options

A. `O^(2-),O_(2)^(2-),O_(2)^(-)`
B. `O^(2-),O_(2)^(-),O_(2)^(2-)`
C. `O^(-),O^(2-),O^(3-)`
D. `O^(-),O^(2-),O_(2)^(2-)`

Answer

To answer the question regarding the types of oxides and the ions they contain, we will break it down step by step.

### Step-by-Step Solution:

1. **Understanding Normal Oxides:**
- Normal oxides are compounds formed with oxygen in its -2 oxidation state.
- The ion present in normal oxides is the oxide ion (O²⁻).
- Therefore, for the first blank, we write: **O²⁻**.

2. **Understanding Peroxides:**
- Peroxides are compounds that contain the peroxide ion, which has an oxidation state of -1 for each oxygen atom.
- The ion present in peroxides is the peroxide ion (O₂²⁻).
- Therefore, for the second blank, we write: **O₂²⁻**.

3. **Understanding Superoxides:**
- Superoxides contain the superoxide ion, which has an oxidation state of -1/2 for each oxygen atom.
- The ion present in superoxides is the superoxide ion (O₂⁻).
- Therefore, for the third blank, we write: **O₂⁻**.

### Final Answer:
- The normal oxide contains **O²⁻** ion,
- The peroxide contains **O₂²⁻** ion,
- The superoxide contains **O₂⁻** ion.

### Summary:
- Normal Oxide: O²⁻
- Peroxide: O₂²⁻
- Superoxide: O₂⁻