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How does a paint film form after water evaporates from an acrylic emulsion?

Answer and explanation

Correct answer: Polymer particles join to form a continuous film

Acrylic paint is an aqueous polymer emulsion containing pigment dispersed in water with acrylic polymer particles. As water evaporates, the particles move closer together, deform, and coalesce into a continuous polymer film that traps the pigment and adheres to the surface. Option B correctly describes this film-formation process. Pigments do not evaporate, water does not become oil, and normal drying does not melt the canvas.

Related tags

AcrylicPolymer-EmulsionFilm-FormationDryingAcrylic ColourPainting TechniquesArt EducationClass 9 Mcq

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