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What problem can occur if too much water is added to poster colour?

Answer and explanation

Correct answer: The colour will become thin and less opaque

The governing concept is dilution and opacity. Poster colour normally covers the surface with a fairly solid layer, but adding excessive water decreases the proportion of pigment in the mixture. It therefore becomes runny and less opaque, so option D is correct. The paint does not become thicker, metallic, or instantly black. A small controlled amount of water may improve flow, but too much weakens coverage and can cause unwanted spreading.

Related tags

Too Much WaterPoster ColourOpacityDilutionPainting TechniquesArt EducationClass 9 Mcq

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