Why are Zn,MnNi,Co not precipitated n the group III as hydroxides?

Explanation

To answer the question of why zinc (Zn), manganese (Mn), nickel (Ni), and cobalt (Co) are not precipitated in group III as hydroxides, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding Group III Cations**:
- Group III cations in qualitative analysis typically include metals like aluminum (Al), chromium (Cr), iron (Fe), etc. These cations can precipitate as hydroxides when treated with hydroxide ions.

2. **Solubility Product (Ksp)**:
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