Boric acid is polymeric due to :

Options

A. Its monobasic nature
B. Its acidic nature
C. The presence of hydrogen bonds
D. Its geometry

Explanation

To determine why boric acid is polymeric, we can analyze the structure and properties of boric acid step by step.

### Step 1: Understanding Boric Acid Structure
Boric acid (H₃BO₃) consists of boron (B) surrounded by three hydroxyl (–OH) groups. The molecular structure can be represented as follows:

\[ \text{B(OH)}_3 \]

### Step 2: Identifying the Nature of Boric Acid
Boric acid is classified as a weak acid. It does not dissociate completely in solution, which is a characteristic of monobasic acids. However, this alone does not explain its polymeric nature.

### Step 3: Exploring Hydrogen Bonding
One of the key features of boric acid is the presence of hydrogen bonds. The hydroxyl groups can form hydrogen bonds with each other, leading to the formation of larger structures or polymers.

### Step 4: Polymerization Process
When boric acid molecules interact through hydrogen bonding, they can link together to form a network. This network structure is what gives boric acid its polymeric character.

### Conclusion
Thus, the polymeric nature of boric acid is primarily due to the presence of hydrogen bonds between the molecules.

### Final Answer
Boric acid is polymeric due to the presence of hydrogen bonds.