Bathing soaps are potassium salts of long chain fatty acids while washing soaps are sodium salts of long chain fatty acids .

Explanation

### Step-by-Step Solution:

1. **Understanding the Composition of Soaps:**
- Bathing soaps are potassium salts of long-chain fatty acids.
- Washing soaps are sodium salts of long-chain fatty acids.

2. **Identifying the Anionic Groups:**
- Bathing soaps contain the anionic group COO⁻ (carboxylate group).
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