1. You have a sample that is known to be either benzophenone (has a carbonyl plus aromatics) or naphthalene (only aromatics). What is a quick, easy, spectroscopic way to find out?
2. p-dichlorobenzene boils at 54-56oC; Cyclohexane boils at 80.7oC; which will elute from a GC column first?
b. Neither-liquids aren't used in gas chromatography
3. Which is not a commonly used drying agent?
a. Sodium sulphate
b. Magnesium sulphate
c. Sodium chloride
d. Calcium chloride
4. A modified version of column chromatography is:
a. Flash column chromatography
b. Paper chromatography
c. Thin layer chromatography
d. Gas chromatography
1.(a), 2.(c), 3.(c), 4.(a)