c. If a green dye is subjected to a chromatography test and it separates into 2
spots, blue with an R₁ = 0.40 and yellow with an R, = 0.60, is this the same food
color that is called Green dye 60?
d. A yellow dye is found at a crime scene. It is put through a chromatography test
and the solvent front moves 6.8 cm while the yellow pigment only moved 4.1 cm.
Calculate the R, factor for this dye. Using the table above, which yellow dye is
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this?