Which of the compounds shown below are chiral? (choose all correct) ОН o ОН E Which...
Which of the compounds shown below are meso? (choose all correct answers) OH HO
Which of the compounds shown below would be the major organic product of the set of reactions shown? 1) PBrg/Br2 ? OH 2) H20 TBr OH Y Br C ОН PBra ОН Which of the compounds shown below would be the major organic product of the reaction shown? olar | HOCNH, NH2 OH
3. For each of the following chiral molecules, indicate whether the enantiomer shown is the Ror Senantiomer. CH3 CH2-CHE чон NH, OH CH=CH2 4. A liquid mixture is comprised of a 50:50 mixture of the following two compounds. Which of the following statements is true? (Choose one) CH3 A) The liquid is a racemate. B) The liquid is a mixture of two constitutional isomers. C) The liquid is a mixture of two unrelated compounds. D) The compounds are identical; it...
Question 17 Predict the major product(s) for the reaction shown below. (choose all correct answers) Br2 ?? Br Br Br Br Br Br Br பி Question 18 Which of the reaction steps, shown below, would be part of the mechanism for the acid-catalyzed hydration of trans-but-2-ene? (choose all correct answers) OH но н-о-s-он + H нн H-O-S-OH Он + о H H онн нн :Он он H H нн O нн H-O-S-OH он + OH o=S-O
Which of the following has the compounds shown in the correct order of decreasing acidity ОН OH CHE 2 1 CCO A a. 1>2> 3 b. 3>2>1 C. 1>3>2 d. 2>1>3
QUESTION 1 Which of the compounds shown below would be the major organic product of the reaction shown? NH2 Но OH NH2 Он в C D CI CA C c C D ооо
3) Which of the following compounds is chiral? A) H Н-С-н н B) H HO C-OH Н C) CH3 HO-C-H Cl D) Br Н-С-ОН н E) C Br- C-C Br 4) In the L- isomer of a Fischer projection of a monosaccharide, the -OH group furthest from the carbonyl is written A) on the left of the top chiral carbon B) on the right of the top chiral carbon C) on the left of the middle chiral carbon D) on...
Which statement(s) about meso compounds is (are) true? Choose all that applies: a. Meso compounds are optically inactive. b. Meso compounds contain a plane of symmetry. c. A meso compound and enantiomers are superimposable mirror images of each other. d. A meso compound contains at least one chiral center. e. A meso compound has same physical properties from its stereoisomers.
QUESTION 19 Which of the following compounds are aromatic? Choose all possible compounds. Assume all completely conjugated rings are planar. Coop oooo a, cd a, b, d, e b,cd a, b,c,d QUESTION 20 Save All Answers Close me Click Save and submit to save and submit. Click Save All Answers to save all answers QUESTION 20 Rank the following compounds in order of increasing reactivity in nucleophilic acyl substitution (from least to most OMe NH2 | CAB Β< <Α С...
9. C (Z-2-hexene d. They are all of equal stability. Choose the most stable alkene among the following a 1-hexene b. (E)-2-hexene 10. What is the relation between an enantiomer's configuration and its specific rotation? (a) Rcompounds usually are dextrorotatory with few exceptions (b) R compounds always are dextrorotatory. (c) There is no relation. (d) R compounds always are levorotatory 11. How many chiral centers are there in tartaric acid, and how many different stereoisomers exist for this acid? он...