CA Sample Test Bio Organic Time 60 minutes ANSWER ALL QUESTIONS Student Number __________________ Name ___________________ Answer all 4 questions. Each question is worth 25% All answers to be...

CA Sample Test Bio Organic Time 60 minutes ANSWER ALL QUESTIONS Student Number __________________ Name ___________________ Answer all 4 questions. Each question is worth 25% All answers to be handwritten. Declaration “When you upload the answers you also confirm that all content is my own work and not copied or plagiarised” Failure to upload will result in zero marks. Time 60 minutes Question 1: R&S Perspective Configuration Straight Chains Draw the prospective formula (dashed and wedged lines) for all possible stereoisomers for the molecule below. Identify the enantiomers and diastereoisomers. Label the R and S carbon sights. Question 2: Fisher Projection Draw the Fisher Projection diagrams for the molecules below. Identify the R and S centres for each Fisher diagram. Question 3: R&S Ring Systems Draw all the stereoisomers for 2-hydroxy-1-methyl-cyclopentane. Identify the R and S configuration at each stereocenter (asymmetric carbon). Question 4: Polarimeter The specific rotation for drug X (pure (S) enantiomer) is [α]D20 = -30o. A sample of drug X was synthesised in the lab. The observed specific rotation of the drug sample was -20o. What percentage of the mixture is the (S) enantiomer.