Question: Q4. Standard compounds A and B were separated by using a TLC plate. Travel distance from origin to solvent front (dsolvent) is constant as 79.5

Q4. Standard compounds A and B were separated by using a

Q4. Standard compounds A and B were separated by using a TLC plate. Travel distance from origin to solvent front (dsolvent) is constant as 79.5 mm. Travel distance from origin to center of substance spot for each compound is given in Table 3. Calculate the retention factor (Rt) values for each compound and comment on unknown compounds 1 and 2. A B D Solvent front Origin Table 3. Travel distance from origin to center of substance spot for each compound Compound Retention factor Distance from origin to center of substance spot (mm) A 28.0 ? B 59.5 ? C (Unknown 1) 28.5 59.0 ? ? ? D (Unknown 2) 28.0

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