Q36. The correct statement among the following, for a "chromatography" purification method is :\\
(1) Organic compounds run faster than solvent in the (2) $R _ { f }$ is an integral value.\\
thin layer chromatographic plate.\\
(3) $\mathrm { R } _ { f }$ of a polar compound is smaller than that of a (4) Non-polar compounds are retained at top and\\
non-polar compound. non-polar compound. polar compounds come down in column chromatography.