Reactivity of borazole is greater than that of benzene because

Options

A. Borazole is non - polar compound
B. Borazole is a polar compound
C. Borazole is electron deficient compound
D. Not isostructural with benzene

Answer

To understand why the reactivity of borazole (B3N3H6) is greater than that of benzene (C6H6), we can analyze the structures and properties of both compounds step by step.

### Step 1: Structure of Benzene
Benzene is a cyclic compound with the formula C6H6. It consists of six carbon atoms arranged in a hexagonal ring, with alternating double and single bonds between the carbon atoms. The structure can be represented as follows:

```
C
/ \
C C
|| ||
C---C
\ /
C
```

### Step 2: Structure of Borazole
Borazole, also known as borazine, has the formula B3N3H6. It consists of alternating boron (B) and nitrogen (N) atoms in a similar hexagonal arrangement, with hydrogen atoms attached to each boron and nitrogen. The structure can be represented as:

```
B
/ \
N B
|| ||
N---B
\ /
N
```

### Step 3: Electronegativity and Polarity
In benzene, all the atoms are carbon, which are of similar electronegativity, resulting in a non-polar molecule. In borazole, however, boron and nitrogen have different electronegativities. Nitrogen is more electronegative than boron, leading to a polar structure. This polarity creates a dipole moment in borazole, making it more reactive than benzene.

### Step 4: Reactivity Comparison
The presence of electronegative nitrogen atoms in borazole creates partial negative charges (δ-) on the nitrogen atoms and partial positive charges (δ+) on the boron atoms. This charge separation increases the reactivity of borazole compared to benzene, which lacks such charge separation.

### Conclusion
Thus, the reactivity of borazole is greater than that of benzene because borazole is a polar compound due to the difference in electronegativity between boron and nitrogen, leading to a more reactive nature.