Sulphanilic acid although has acidic as well as basic group, it is soluble in alkali but insoluble in mineral acid.

Explanation

To understand why sulphanilic acid is soluble in alkali but insoluble in mineral acids, we can break down the explanation into several steps:

### Step 1: Identify the Structure of Sulphanilic Acid
Sulphanilic acid has both an amino group (-NH2) and a sulfonic acid group (-SO3H). The structure can be represented as:
- **NH2** (amino group)
- **SO3H** (sulfonic acid group)

### Step 2: Understand the Zwitterion Formation
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