The correct statement(s) regarding diborane `(B_(2)H_(6))` is/are:

Options

A. Maximum six hydrogenn atoms can lie in a plane
B. Maximum six atoms cann lie in a plane
C. Bridging `H_(b)-B` bond is stronger than terminal B-`H_(t)` bond
D. Terminal `H_(t) -B-H_(t)` bond angle is greater than bridging `H_(b)-B-H_(b)` bond angle

Explanation

To analyze the correct statements regarding diborane \((B_2H_6)\), we will follow a systematic approach to evaluate each statement based on the structure and bonding of diborane.

### Step-by-Step Solution:

1. **Understanding the Structure of Diborane**:
- Diborane consists of two boron atoms and six hydrogen atoms. The structure includes two types of hydrogen bonds: terminal and bridging.
- Terminal hydrogen atoms are bonded directly to boron atoms, while bridging hydrogen atoms are shared between two boron atoms.

2. **Evaluating the Statements**:
- **Statement 1**: "Maximum 6 hydrogens can lie in the plane."
- **Evaluation**: This statement is incorrect. In the structure of diborane, only four terminal hydrogens lie in the same plane, while the two bridging hydrogens are positioned above and below this plane. Therefore, not all six hydrogens can lie in the same plane.

- **Statement 2**: "Maximum 6 atoms can lie in the plane."
- **Evaluation**: This statement is correct. The two boron atoms and the four terminal hydrogen atoms can indeed lie in the same plane, making a total of six atoms in that plane.

- **Statement 3**: "Bridging HB bond is stronger than the terminal BH bond."
- **Evaluation**: This statement is incorrect. The bridging bonds are 3-center, 2-electron bonds, which are generally weaker due to the distribution of electron density over three atoms. In contrast, terminal bonds are 2-center, 2-electron bonds, which are stronger.

- **Statement 4**: "Terminal HBH bond angle is greater than the bridging HBH bond angle."
- **Evaluation**: This statement is correct. The terminal HBH bond angle is approximately 120 degrees, while the bridging HBH bond angle is around 97 degrees. Therefore, the terminal bond angle is indeed greater.

3. **Conclusion**:
- The correct statements regarding diborane are **Statement 2** and **Statement 4**.

### Final Answer:
The correct statements regarding diborane \((B_2H_6)\) are **2 and 4**.