Give reason for each of the following:
For ferric hydroxide sol the coagulating power of phosphate ion is more than chloride ion.

Explanation

To explain why the coagulating power of phosphate ion is greater than that of chloride ion for ferric hydroxide sol, we can break down the reasoning into several steps:

### Step-by-Step Solution:

1. **Understanding Ferric Hydroxide Sol**:
- Ferric hydroxide sol is represented as Fe(OH)₃ and is a positively charged colloidal solution.

2. **Coagulation of Colloids**:
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