a. In general is there any difference between R and S, and + and -? between...

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Chemistry

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:
Â Â Â Â Â Â Â 1. A mixture of (+)-and (--)-carvone can be separated by column chromatography onsilica gel using hexanes-acetone as elution.
Â Â Â Â Â Â Â 2. In general, columnchromatography on silica gel is run with a series of solvents ofincreasing polarity.
Â Â Â Â Â Â Â 3. Carvone is morepolar than limonene.
c. Which compound, limonene or carvone, do you expct would elutefirst from the silica gel column? Which one would have shorterretention time on the GC? Briefly justify your answer.

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4.1 Ratings (506 Votes)

a i R and S are absolute configuration of a chiral centre in stereochemistry it refers to the spatial arrangement of the atoms of a chiral molecular group or entity and its See Answer

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