Oxidation number of oxygen atom in `O_(3)` molecule is

Options

A. 0
B. -2
C. `+2`
D. `-1//2`

Answer

To find the oxidation number of the oxygen atom in the ozone molecule (O₃), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the molecule**: The molecule in question is ozone (O₃). It consists of three oxygen atoms.

2. **Understand oxidation number**: The oxidation number indicates the degree of oxidation (loss of electrons) of an atom in a compound. In elemental forms, such as O₂ or O₃, the oxidation number is typically zero.

3. **Determine the type of atoms present**: In O₃, all the atoms are oxygen. Since there is no difference in electronegativity between the same atoms, we can conclude that the oxidation number of each oxygen atom in ozone will be the same.

4. **Calculate the oxidation number**: For elemental oxygen (O₂ or O₃), the oxidation number is 0 because it is in its elemental state. Thus, the oxidation number of each oxygen atom in O₃ is 0.

5. **Conclusion**: Therefore, the oxidation number of the oxygen atom in the O₃ molecule is 0.

### Final Answer:
The oxidation number of oxygen atom in O₃ is **0**.

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