Which from following process does NOT results in coagulation?

Step-by-step solution

Coagulation is the aggregation of colloidal particles into larger masses that sediment, following destabilization of the sol. Electrophoresis induces coagulation via charge neutralization at electrodes, boiling disrupts stabilizing layers through thermal agitation, and mixing oppositely charged sols causes mutual neutralization. Adding excess solvent, however, generally stabilizes the sol by reducing particle collision frequencies and diluting coagulating electrolytes, rather than promoting aggregation. Thus, addin