Concept:
Each colloidal process has a specific application.
Step 1: Dialysis.
Removes impurities â purification.
Step 2: Peptization.
Converts precipitate â colloidal solution.
Step 3: Emulsification.
Responsible for soap cleansing action.
Step 4: Electrophoresis.
Leads to coagulation.
Step 5: Conclusion.
\[
\text{i - d, ii - c, iii - a, iv - b}
\]