What is the basicity of orthoboric acid ?

Explanation

To determine the basicity of orthoboric acid (H3BO3), we can follow these steps:

### Step 1: Understand the Structure of Orthoboric Acid
Orthoboric acid has the chemical formula H3BO3. Its structure consists of a boron atom bonded to three hydroxyl (OH) groups. The structure can be represented as:
\[ \text{B(OH)}_3 \]

### Step 2: Dissociation in Aqueous Solution
When orthoboric acid is dissolved in water, it interacts with water molecules. It can absorb one hydroxide ion (OH⁻) from water to form the tetrahydroxyborate ion (BOH₄⁻) and releases one hydrogen ion (H⁺) into the solution:
...