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Summary of Probability

Five coloured...

Question

Five coloured sweets P, Q, R, S and T were analysed using paper chromatography. The chromatogram obtained is shown below. Which sweet contained only one dye?

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Solution

In a chromatogram, the number of spots produced for a sweet represents the number of dye contained. Since sweet $Q$ produces only one spot on the chromatogram, it contains only one dye

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