Peptization is reverse of coagulation. T or F

Answer

To determine whether the statement "Peptization is the reverse of coagulation" is true or false, we need to understand the definitions and processes involved in both coagulation and peptization.

### Step-by-Step Solution:

1. **Understanding Coagulation**:
- Coagulation is the process where colloidal particles aggregate together to form larger particles or precipitates. This occurs when the stabilizing charge on the colloidal particles is removed, leading to their aggregation and eventual settling out of the solution.

2. **Understanding Peptization**:
- Peptization is the process of converting a precipitate back into a colloidal solution. This is achieved by adding a dispersing agent or by restoring the charge on the particles, which allows them to remain suspended in the solution.

3. **Relationship Between Coagulation and Peptization**:
- Since coagulation involves the aggregation of colloidal particles into a precipitate, and peptization involves the re-dispersion of that precipitate back into a colloidal state, we can see that these two processes are indeed opposites of each other.

4. **Conclusion**:
- Therefore, the statement "Peptization is the reverse of coagulation" is true.

### Final Answer:
**True**