How is dialysis carried out? Mention its one application.

Explanation

**Step-by-Step Solution:**

1. **Understanding Dialysis:**
- Dialysis is a process used to separate small molecules or ions from larger molecules in a colloidal solution. It is particularly useful for the purification of colloidal solutions.

2. **Materials Required:**
- To carry out dialysis, you need:
- Animal parchment paper (which acts as a semi-permeable membrane)
...