Match the List -I with List -II and select the correct answer using the codes given below the lists .
`{:("List-I","List-II"),((A) "Coagulation",(1)"Scattering"),((B)"Lyophilization",(2)"Washing of precipitates"),((C)"Peptization",(3)"Purificationof colloids"),((D)"Tyndall effect",(4) "Electrolyte "):}`

Options

A. `{:(A,B,C,D),(4,3,2,1):}`
B. `{:(A,B,C,D),(2,1,3,4):}`
C. `{:(A,B,C,D),(3,1,2,4):}`
D. `{:(A,B,C,D),(4,3,1,2):}`

Answer

To solve the problem of matching List-I with List-II, we need to analyze each term in List-I and find its corresponding match in List-II based on the definitions and characteristics of each concept.

### Step-by-Step Solution:

1. **Coagulation (A)**:
- Coagulation refers to the process where colloidal particles aggregate to form larger particles, leading to precipitation. This occurs when the charge on the colloidal particles is neutralized, often by adding an electrolyte.
- **Match**: Coagulation corresponds to (4) Electrolyte.

**Conclusion for A**: A → 4

2. **Lyophilization (B)**:
- Lyophilization, also known as freeze-drying, is a method used for the purification of colloids. It involves freezing the colloidal solution and then removing the water under vacuum, allowing the ice to transition directly from solid to vapor.
- **Match**: Lyophilization corresponds to (3) Purification of colloids.

**Conclusion for B**: B → 3

3. **Peptization (C)**:
- Peptization is the process of converting a precipitate into a colloidal solution by shaking it with an electrolyte. This process effectively 'washes' the precipitate and disperses it into a colloidal state.
- **Match**: Peptization corresponds to (2) Washing of precipitates.

**Conclusion for C**: C → 2

4. **Tyndall Effect (D)**:
- The Tyndall effect is the scattering of light by colloidal particles. When a beam of light passes through a colloidal solution, it is scattered, which is a characteristic property of colloids.
- **Match**: Tyndall effect corresponds to (1) Scattering.

**Conclusion for D**: D → 1

### Final Matching:
- A → 4
- B → 3
- C → 2
- D → 1

### Answer Code:
The correct answer code based on the matches is:
**(A-4, B-3, C-2, D-1)**