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What may happen if too much water is added to poster colour?

Answer and explanation

Correct answer: Opacity and covering power may decrease

The governing concept is the balance between pigment concentration and binder or water in poster colour. Excess water dilutes the pigment, making the paint thinner and reducing opacity and covering power; therefore, option A is correct. It does not make the paint thicker, cannot turn it black by itself, and does not always increase saturation. A controlled amount of water may improve flow, but too much can cause weak layers, uneven coverage, and unwanted runs on the surface.

Related tags

Poster ColourWater DilutionOpacityColour MixingColour TheoryArt EducationClass 9 Mcq

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