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Singapore GCE N(A)-Level Science (Chemistry, Biology) Practice Questions - Singapore-Cambridge GCE Normal (Academic) Level Science (Chemistry, Biology) Exam

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A student performs paper chromatography to identify food dyes in a sample. The solvent front moved 8.0 cm from the baseline, while dye spot X moved 6.0 cm. What is the Rf value of dye spot X?
Correct Answer:
0.75

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