The maximum number of bond and `pi` bond can be formed between two atoms are respectively.

Options

A. (a)4,3
B. (b)3,2
C. (c)2,3
D. (d)3,1

Answer

To solve the question regarding the maximum number of bonds and pi bonds that can be formed between two atoms, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Types of Bonds**:
- There are two main types of covalent bonds: **sigma (σ) bonds** and **pi (π) bonds**.
- Sigma bonds are formed by **head-on overlapping** of atomic orbitals, while pi bonds are formed by **sideways overlapping**.

2. **Maximum Number of Bonds**:
- Two atoms can form a maximum of **three covalent bonds**. This can occur in the following ways:
- **Single bond**: One sigma bond (1 σ).
- **Double bond**: One sigma bond and one pi bond (1 σ + 1 π).
- **Triple bond**: One sigma bond and two pi bonds (1 σ + 2 π).

3. **Identifying the Maximum**:
- The maximum number of bonds that can be formed between two atoms is **3**.
- The maximum number of pi bonds that can be formed is **2**, which occurs in a triple bond scenario.

4. **Conclusion**:
- Therefore, the maximum number of bonds and pi bonds that can be formed between two atoms are **3** and **2**, respectively.

### Final Answer:
- Maximum number of bonds = **3**
- Maximum number of pi bonds = **2**