Boron with hydrogen forms a number of hydrides which are known are boranes. These hydrides are classified into closoboranes and nidobarances. The simplest hydride of boron is diborane. Boron apart from having `(2c, 2e)` bonds also contain `(3c, 2e)` bonds.
General formula of nidoboranes is.

Options

A. `B_(n)H_(n+4)`
B. `B_(n)H_(n+6)`
C. `B_(n)H_(n+2)`
D. `B_(n)H_(n-4)`

Answer

To solve the question regarding the general formula of nidoboranes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Boranes**:
- Boranes are hydrides of boron, which can be classified into two categories: closoboranes and nidoboranes.
- The simplest borane is diborane (B2H6).

2. **Identifying Nidoboranes**:
- Nidoboranes are a type of borane that have a specific structural arrangement.
- They contain boron atoms that are not fully coordinated, leading to the presence of three-center two-electron (3c, 2e) bonds.

3. **General Formula for Nidoboranes**:
- The general formula for nidoboranes can be derived based on the number of boron atoms (B) and hydrogen atoms (H).
- The formula is given as \( B_nH_{n+4} \), where \( n \) is the number of boron atoms.

4. **Example Calculation**:
- If we take \( n = 4 \) (meaning there are 4 boron atoms), we can substitute into the formula:
- Number of hydrogen atoms = \( n + 4 = 4 + 4 = 8 \)
- Thus, for \( n = 4 \), the formula would be \( B_4H_8 \).

5. **Conclusion**:
- The general formula for nidoboranes is \( B_nH_{n+4} \).

### Final Answer:
The general formula of nidoboranes is \( B_nH_{n+4} \).

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