Fill in the blanks by choosing the appropriate word/words from those given in the brackets.(dialysis, peptization , dispersed phase , dispersion medium , electrophoresis , electro-osmosis , coagulation , coagulates, emulsion , gel , gold number , Tyndall effect , protective colloids , electrodialysis)
On adding a few drops of dilute ferric chloride solution to freshly precipitated ferric hydroxide, a red colloidal solution is obtained. The phenomenon is known as ........

Explanation

To solve the given question, we need to understand the process that occurs when dilute ferric chloride solution is added to freshly precipitated ferric hydroxide. Here’s the step-by-step solution:

### Step-by-Step Solution:

1. **Identify the Components**:
- We have freshly precipitated ferric hydroxide (Fe(OH)₃), which is in a solid form.
- We are adding dilute ferric chloride (FeCl₃) solution to this precipitate.

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