When the atomic orbitals overlap in such a way that their axis remain parallel to each other and perpendicular to the intermolecular axis this type of overlapping results the formation of

Options

A. sigma bonding
B. `pi` bonding
C. back bonding
D. none of the above

Answer

To solve the question regarding the type of overlapping of atomic orbitals, we will analyze the conditions given in the problem step by step.

### Step-by-Step Solution:

1. **Understanding Atomic Orbitals**:
- Atomic orbitals are regions in an atom where there is a high probability of finding electrons. They can overlap to form bonds between atoms.

2. **Identifying the Type of Overlap**:
- The question states that the atomic orbitals overlap in such a way that their axes remain parallel to each other and are perpendicular to the internuclear axis.

3. **Defining the Internuclear Axis**:
- The internuclear axis is the straight line connecting the nuclei of two bonded atoms.

4. **Visualizing the Overlap**:
- If the orbitals are parallel and perpendicular to the internuclear axis, this indicates that the overlap occurs sidewise rather than endwise.

5. **Type of Bond Formed**:
- Sidewise overlapping of atomic orbitals typically leads to the formation of pi (π) bonds. In contrast, endwise overlapping leads to sigma (σ) bonds.

6. **Conclusion**:
- Therefore, when atomic orbitals overlap in such a manner, they form a pi (π) bond.

### Final Answer:
The type of overlapping described results in the formation of a **pi (π) bond**.

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