Dear student. Applications of chromatography - 1.to check the purity of an organic compound, 2.to detect pesticide or insecticide residues in food, 3.in forensics to analyze the dye composition of fibers. Applications of centrifugation - 1.used in dairies and home to separate cream from milk or butter from cream. 2.used in washing machines to squeeze out water from clothes. 3.used in diagnostic labs for blood and urine. test. Applications of evaporation - 1.To separate salt from a mixture of salt and water 2.Drying of clothes. Regards