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)
Alum is widely used for water purification because it ............ the mud particles.

Explanation

To solve the question, we need to fill in the blank with the appropriate term related to the process of water purification using alum. Here’s a step-by-step solution:

### Step 1: Understand the context of the question
The question states that alum is used for water purification, specifically mentioning its effect on mud particles. We need to identify what alum does to these particles.

**Hint:** Think about the chemical processes involved in water purification and how colloidal particles behave in a solution.

### Step 2: Identify the role of alum
...