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Q.

Which method is used for the separation of dye in black ink?

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a

Sedimentation

b

Chromatography

c

Crystallography

d

Diffusion

answer is B.

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Detailed Solution

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Chromatography is the technique of separating those solutes that dissolve in the same solvent. The ink we use has water as the solvent, and the dye is soluble. Hence, this method can be used to separate dye from black ink.

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