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What is the main reason for cleaning a brush before changing colours?

Answer and explanation

Correct answer: To prevent unwanted mixing of colours

The governing concept is maintaining colour purity during painting. Washing or thoroughly rinsing the brush removes traces of the previous pigment, so the next colour remains close to its intended hue and brightness. Therefore, option A is correct. Cleaning does not shorten the brush, polish the paper, or add physical weight to the painting; its purpose is to prevent unwanted colour contamination.

Related tags

Colour ChangeClean BrushColour PurityBrush TechniquesPainting TechniquesArt EducationClass 9 Mcq

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