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TABLE NO.- 4(B)PHYSICAL CONSTANTS OF 2-(4-CHLOROPHENYL)-3-(4,5-DIHYDRO-3-ARYL-1H-PYRAZOL-5-YL)-8-METHYL-1H-IMIDAZO[1,2-a]PYRIDINE.Sr.No.RMolecularFormulaM.W.M.P.°CRf*Value%Yield% NitrogenCalcd. Found4aC 6 H 5 -C 23 H 19 ClN 4386.5154.00.5960.014.4814.334b4-CH 3 -C 6 H 4 -C 24 H 21 ClN 4400.5123.00.6168.013.9813.894c4-OCH 3 -C 6 H 4 -C 24 H 21 ClN 4 O416.5136.00.5556.013.4413.354d4-Cl-C 6 H 4 -C 23 H 18 Cl 2 N 4421.0146.00.6259.013.3013.254e4-F-C 6 H 4 -C 23 H 18 ClFN 4404.1168.00.4862.013.8413.804f4-Br-C 6 H 4 -C 23 H 18 ClBrN 4465.5109.00.6655.012.0312.004g4-NH 2 -C 6 H 4 -C 23 H 20 ClN 5401.5131.00.5160.017.4317.364h4-NO 2 -C 6 H 4 -C 23 H 18 ClN 5 O 2431.5143.00.5859.016.2216.054i4-OH-C 6 H 4 -C 23 H 19 ClN 4 O402.5121.00.4348.013.9113.83Solvent System : Ethyl acetate : Hexane (4:6)132Pyrazoline…..