Benzophenone Synthesis

. Yes, comparably to TLC plate 2 and 3. The benzophenone is more neutral but as the same time its nonpolar, being that Silica gel in TLC 2 was polar and the solvent ethyl acetate-hexane is non-polar it moved relatively with the solvent. The stationary phase in TLC 3, alumina is non polar and the solvent ethyl acetate is polar so from the ideal that polar does not attract non-polar benzophenone stick stronger to alumina non-polar rather than moving up with polar solvent ethyl acetate as it did in tlc2.
6. Ethyl acetate is polar and Ethyl acetate- hexane is nonpolar, use of polarity differences. Because the polarity of the stationary phase silica gel is fixed, the mobile faces ratio of ethyl acetate and hexane moves the components further away