Oxygen atoms and hydrogen atoms in `H_2O_2` are collinear.

Explanation

To determine whether the oxygen atoms and hydrogen atoms in hydrogen peroxide (H₂O₂) are collinear, we need to analyze the molecular structure of H₂O₂.

### Step-by-Step Solution:

1. **Understanding Collinearity**:
- Collinear points are points that lie on the same straight line. For three atoms to be collinear, they must be arranged in a linear fashion without any angle between them.

2. **Molecular Structure of H₂O₂**:
- Hydrogen peroxide consists of two hydrogen atoms and two oxygen atoms. The molecular formula is H₂O₂, indicating that there are two hydrogen atoms bonded to two oxygen atoms.

3. **Drawing the Lewis Structure**:
- In the Lewis structure of H₂O₂, each oxygen atom is bonded to one hydrogen atom and to the other oxygen atom. The structure can be represented as:
```
H-O-O-H
```
- Each oxygen atom has two lone pairs of electrons.

4. **Analyzing the Geometry**:
- The presence of lone pairs on the oxygen atoms affects the molecular geometry. According to VSEPR (Valence Shell Electron Pair Repulsion) theory, the lone pairs will repel the bonding pairs of electrons, leading to a bent shape rather than a linear one.

5. **Conclusion**:
- Since the arrangement of the atoms in H₂O₂ is bent due to the lone pairs on the oxygen atoms, the hydrogen and oxygen atoms are not collinear. Therefore, the statement that the oxygen atoms and hydrogen atoms in H₂O₂ are collinear is **incorrect**.

### Final Answer:
The oxygen atoms and hydrogen atoms in H₂O₂ are **not collinear** due to the bent structure caused by the lone pairs on the oxygen atoms.

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