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Employing chromatography, one cannot separate 

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Employing chromatography, one cannot separate 

(a) radioisotopes 

(b) colours from a dye 

(c) pigments from a natural colour

(d) drugs from blood

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1 Answer

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(a) radioisotopes

Chromatography is a technique used for the separation of those solvents that dissolve in the same solvent. Radioisotopes cannot be dissolved in the same solvent to separate it.

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