(A) filtration, followed by acidic extraction, followed by recrystallization.
(B) filtration, followed by basic extraction, followed by evaporation.
(C) extraction, followed by distillation, followed by gas chromatography.
filtration, followed by size-exclusion column chromatography, followed by
extraction.
(D)
10 . Simple distillation could be used to separate which of the following compounds?(A) Toluene (boiling point of 111°C) and water (boiling point of 100°C)
(B) Naphthalene (boiling point of 218°C) and butyric acid (boiling point of 163°C)
(C) Propionaldehyde (boiling point of 50°C) and acetic acid (boiling point of 119°C)
(D) Benzene (boiling point of 80°C) and isopropyl alcohol (boiling point of 83°C)
11 . In order to separate a biological effector from solution, which chromatographic technique
would be the most effective?(A) Thin-layer chromatography
(B) Ion-exchange chromatography
(C) Affinity chromatography
(D) Size-exclusion chromatography
12 . Given a solution of insulin (molecular weight = 5.8 kD) and titin (molecular weight = 3816
kD), which chromatographic technique would be the most effective for separating out
usable molecules of titin?(A) Thin-layer chromatography
(B) Ion-exchange chromatography
(C) Affinity chromatography
(D) Size-exclusion chromatography
13 . The gas eluent in gas chromatography and the liquid eluent in paper chromatography are
examples of which component of these systems?