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4. Imagine an experiment in which a mixture composed of the following five compounds is subjected to TLC analysis: Ph-OCH3, Ph-COOH, Ph-CH CH3, Ph-CH2OH, PhCOCH (Ph= phenyl, C6H5 Arrange the five compounds in order of increasing Rf when benzene is used as the eluent 5. Consider the TLC experiment in (4) above. What, if any, differences would be observed if ethanol were used as the eluent in place of benzene?
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