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Which of the following is the highest energy chair conformation of the following cyclohexane?

Which of the following is a Newman projection of a staggered conformation for propane?

Which of the following is (are) a meso compound(s)? I. 2,4-dichloropentane II. 1,3-dimethylcyclopentane III. 2,3-dichloropentane

Which of the following have the S configuration?

What is the relationship between the two structures shown?

Which structure is an enantiomer of following shown?

How many stereoisomers are possible for this structure?  

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophiles, electrophiles, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, racemization, hyperconjugation, alkyl halides, inversion):  ( correct spelling are required. No partial credit).   Stereoisomers that are not mirror images of each are  ………………………………………….            Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

What is the correct order of the Cahn-Ingold-Prelog ranking of the following substituents as used in assigning R and S configurations of chiral centers? (lower ranking < higher ranking) ​ 1. −CH2OH 2. −CHO 3. −OCH3 4. −OCOCH3 ​

Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram.                                       ​ A B C D Conformation D is represented by Roman numeral ____. (enter the Roman number. No other numbers will be accepted)