a. In general is there any difference between R and S, and + and
-? between d- and l-, and + and -?
b. Discuss the validity of the following statements:
1. A mixture of (+)- and (--)-carvone can be separated by column
chromatography on silica gel using hexanes-acetone as elution.
2. In general, column chromatography on silica gel is run with a
series of solvents of increasing polarity.
3. Carvone is more polar than limonene.
c. Which compound, limonene...