Match list I with list II and select the correct answer :
`{:("Column-I","Column-II"),((A)"Coagulation",(p)"Scattering of light"),((B)"Dialysis",(q)"Washing of precipitates"),((C )"Peptization",(r)"Purification of colloids"),((D)"Tyndall effect",(s)"Electrolyte"),(,(t)"Visibility of tall of comets"):}`

Explanation

To solve the problem of matching items from Column I with Column II, we will analyze each term in Column I and find its corresponding match in Column II based on their definitions and characteristics.

### Step-by-Step Solution:

1. **Coagulation (A)**:
- Coagulation refers to the process where colloidal particles aggregate to form a larger mass, often facilitated by the addition of an electrolyte. The ions from the electrolyte neutralize the charge on the colloidal particles, leading to their aggregation.
- **Match**: Coagulation (A) matches with Electrolyte (s).

2. **Dialysis (B)**:
- Dialysis is a separation process that removes smaller particles from larger particles in a liquid. It is commonly used for the purification of colloids and can be likened to the function of kidneys in filtering blood.
- **Match**: Dialysis (B) matches with Purification of colloids (r).

3. **Peptization (C)**:
- Peptization is the process of converting a coagulated substance back into a colloidal state. This process involves the addition of a dispersing agent.
- **Match**: Peptization (C) matches with Washing of precipitates (q).

4. **Tyndall Effect (D)**:
- The Tyndall effect is the scattering of light by particles in a colloid or very fine suspension. This phenomenon makes the path of a beam of light visible in a colloidal solution.
- **Match**: Tyndall effect (D) matches with Scattering of light (p).

### Final Matches:
- A → s (Coagulation → Electrolyte)
- B → r (Dialysis → Purification of colloids)
- C → q (Peptization → Washing of precipitates)
- D → p (Tyndall effect → Scattering of light)

### Summary of Matches:
- A - s
- B - r
- C - q
- D - p