Sulphanilic acid is insoluble in water and organic solvents. Explain.

Explanation

### Step-by-Step Solution:

1. **Understanding Sulphanilic Acid Structure**:
- Sulphanilic acid contains a sulfonic acid group (-SO3H) and an amino group (-NH2) attached to a benzene ring. The presence of these functional groups is crucial for its properties.

2. **Formation of Zwitterion**:
- In sulphanilic acid, the amino group can accept a proton (H+), while the sulfonic acid group can donate a proton. This leads to the formation of a zwitterion, which is a molecule that has both positive and negative charges but is overall neutral.

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