In which of the following compounds banana bond is present ?

Options

A. `BCl_(3)`
B. `B_(2) H_(6)`
C. `B(OH)_(3)`
D. All of these

Answer

To determine in which of the given compounds a banana bond is present, let's analyze each option step by step.

### Step 1: Understand the Concept of Banana Bond
A banana bond, also known as a tau bond, is a type of bond that occurs in diborane (B2H6). It involves two boron atoms that share hydrogen atoms in a unique way, forming a three-center two-electron bond.

### Step 2: Analyze Each Compound
1. **BCl3 (Boron Trichloride)**:
- Structure: Boron is the central atom bonded to three chlorine atoms.
- Analysis: There are no two boron atoms in the structure, so banana bonds are not present.

2. **B2H6 (Diborane)**:
- Structure: Contains two boron atoms and six hydrogen atoms.
- Analysis: The structure shows two boron atoms sharing hydrogen atoms, forming banana bonds. This is the classic example of a banana bond.

3. **BOH3 (Boric Acid)**:
- Structure: Boron is the central atom bonded to three hydroxyl (OH) groups.
- Analysis: There is only one boron atom in this structure, so banana bonds are not present.

4. **All of the Above**:
- Since only B2H6 contains banana bonds, this option is incorrect.

### Conclusion
The only compound among the options that contains a banana bond is **B2H6 (Diborane)**.

### Final Answer:
**B2H6 (Diborane)** is the compound that contains a banana bond.

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