Chapter 5 Topic: Isomerism Section 1 Difficulty: Easy 1. What is is the relationshi relationship p between between the following following two two compounds? compounds?
A. Constitutional isomers B. Stereoisomers C. Identical D. Not isomers; different compounds entirely. Ans: A Topic: Isomerism Section 1 Difficulty: Easy 2. What is is the relationshi relationship p between between the following following two two compounds? compounds?
A. Constitutional isomers B. Stereoisomers C. Identical D. Not isomers; different compounds entirely. Ans: C Topic: Isomerism Section 1 Difficulty: Easy 3. What is is the relationshi relationship p between between the following following two two compounds? compounds?
A. Constitutional isomers B. Stereoisomers C. Identical D. Not isomers; different compounds entirely. Ans: B Topic: Isomerism Section 1 Difficulty: Easy 4. What is is the relationshi relationship p between between the following following two two compounds? compounds?
A. Constitutional isomers B. Stereoisomers C. Identical D. Not isomers; different compounds entirely. Ans: B Topic: Isomerism Section 1 Difficulty: Easy 5. What is is the relationshi relationship p between between the following following two two compounds? compounds? A. Constitutional isomers B. Stereoisomers C. Identical D. Not isomers; different compounds entirely. Ans: C Topic: Isomerism Section 1 Difficulty: Easy 6. What is is the relationshi relationship p between between the following following two two compounds? compounds?
A. Constitutional isomers B. Stereoisomers C. Identical D. Not isomers; different compounds entirely. Ans: A Topic: Isomerism Section 1 Difficulty: Easy 7. Is the the fol follo lowi wing ng alke alkene ne cis, trans, or neither?
Ans:
trans
Topic: Isomerism Section 1 Difficulty: Easy
8. Is the the fol follo lowi wing ng alke alkene ne cis, trans, or neither?
Ans: neither Topic: Isomerism Section 1 Difficulty: Easy 9. Is the the fol follo lowi wing ng alke alkene ne cis, trans, or neither? Ans:
trans
Topic: Isomerism Section 1 Difficulty: Easy 10. Is the followi following ng alkene cis, trans, or neither?
Ans: cis Topic: Isomerism Section 1 Difficulty: Easy 11. Is the followi following ng alkene cis, trans, or neither?
Ans: neither Topic: Isomerism Section 1 Difficulty: Medium 12. Is the alkene on on the left left in the the molecule molecule below cis, trans, or neither?
Ans:
trans
Topic: Isomerism Section 1 Difficulty: Medium
13. Shown below is the structur structuree of Crestor ® (rosuvastatin), a medication used to reduce cholesterol. Is the highlighted alkene of rosuvastatin cis, trans, or neither?
Ans:
trans
Topic: Isomerism Section 1 Difficulty: Medium 14. Shown below is the structur structuree of Singulair ® (montelukast), a medication used to manage athsma. Is the alkene of montelukast montelukast cis, trans, or neither?
Ans:
trans
Topic: Isomerism Section 1 Difficulty: Hard 15. Draw all the isomers with molecular formula C4H8.
Ans: Topic: Isomerism Section 1 Difficulty: Hard
16. Draw all the isomers with molecular formula C4H6.
Ans:
Topic: Stereoisomerism Section 2 Difficulty: Easy
17. Locate the chirality chirality center(s) in the following compound.
Ans:
Topic: Stereoisomerism Section 2 Difficulty: Easy 18. Shown below is the structure of the drug nicotine. Locate the chirality chirality center(s) in the following compound.
Ans:
Topic: Stereoisomerism Section 2 Difficulty: Easy 19. Locate the chirality chirality center(s) in the following compound.
Ans: Topic: Stereoisomerism Section 2 Difficulty: Easy 20. Locate the chirality chirality center(s) in the following compound.
Ans: Topic: Stereoisomerism Section 2 Difficulty: Easy 21. Locate the chirality chirality center(s) in the following compound.
Ans: Topic: Stereoisomerism Section 2 Difficulty: Easy 22. Identify the relationship relationship between the following following two structures. structures.
A. Enantiomers B. Identical C. Neither Ans: B
Topic: Stereoisomerism Section 2 Difficulty: Easy 23. Identify the relationship relationship between the following following two structures. structures.
A. Enantiomers B. Identical C. Neither Ans: A
Topic: Stereoisomerism Section 2 Difficulty: Easy 24. Identify the relationship relationship between the following following two structures. structures. A. Enantiomers B. Identical C. Neither Ans: B
Topic: Stereoisomerism Section 2 Difficulty: Easy 25. Identify the relationship relationship between the following following two structures. structures.
A. Enantiomers B. Identical
C. Neither Ans: A
Topic: Stereoisomerism Section 2 Difficulty: Easy 26. Identify the relationship relationship between the following following two structures. structures.
A. Enantiomers B. Identical C. Neither Ans: B Topic: Stereoisomerism Section 2 Difficulty: Medium 27. Draw the enantiomer enantiomer of the following following compound.
Ans:
Topic: Stereoisomerism Section 2 Difficulty: Medium 28. Draw the enantiomer enantiomer of the following following compound.
Ans: Topic: Stereoisomerism Section 2
Difficulty: Medium 29. Draw the enantiomer enantiomer of the following following compound.
Ans: Topic: Stereoisomerism Section 2 Difficulty: Medium 30. Draw the enantiomer enantiomer of the following following compound.
Ans: Topic: Stereoisomerism Section 2 Difficulty: Medium 31. Draw the enantiomer enantiomer of the following following compound.
Ans: Topic: Assigning Configuration Section 3 Difficulty: Easy
32. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
S
Topic: Assigning Configuration Section 3 Difficulty: Easy 33. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
S
Topic: Assigning Configuration Section 3 Difficulty: Easy 34. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
R
Topic: Assigning Configuration Section 3 Difficulty: Easy 35. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
S
Topic: Assigning Configuration Section 3 Difficulty: Easy 36. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
R
Topic: Assigning Configuration Section 3 Difficulty: Easy 37. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
R
Topic: Assigning Configuration Section 3 Difficulty: Medium 38. Drawn below below is the structure structure of Crestor Crestor ® (rosuvastatin), a medication used to reduce cholesterol. Assign the absolute configurations of the two chirality centers as R or S .
Ans: Left (allylic) (allylic) alcohol is S ; right alcohol is R
Topic: Assigning Configuration Section 3 Difficulty: Easy 39. Drawn below below is the structure structure of Singulair Singulair ® (montelukast), a medication used to manage athsma. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
R
Topic: Assigning Configuration Section 3 Difficulty: Easy 40. Drawn below below is the structure structure of Plavix® (clopidogrel), a medication used to manage blood clots. Assign the absolute configuration of the chirality center as R or S .
Ans:
S
Topic: Assigning Configuration Section 3 Difficulty: Easy 41. Drawn below is the the structur structuree of Cymbalta Cymbalta® (duloxetine), a medication used to manage depression. Assign the absolute absolute configuration of the chirality center as R or S .
Ans:
S
Topic: Assigning Configuration Section 3 Difficulty: Medium 42. Provide Provide an IUPAC name of the following following compound.
Ans: (S )-4-methyl-2-pentanol )-4-methyl-2-pentanol Topic: Assigning Configuration Section 3 Difficulty: Medium 43. Provide Provide an IUPAC name of the following following compound.
Ans: (S )-3-octanol )-3-octanol Topic: Assigning Configuration Section 3 Difficulty: Easy R)-2-pentanol? 44. Which of the following is is the correct structure for the compound ( R
Ans: C Topic: Assigning Configuration Section 3 Difficulty: Easy 45. Which of the following is is the correct structure for the compound (S )-3)-3methylheptane.
Ans: B Topic: Assigning Configuration Section 3 Difficulty: Medium 46. Draw the structu structure re of the compound compound (S )-3-methylheptane. )-3-methylheptane.
Ans: Topic: Assigning Configuration Section 3 Difficulty: Medium 47. Draw the structu structure re of the compound compound ( R)-4-ethyloctane.
Ans: Topic: Assigning Configuration Section 3 Difficulty: Easy
48. Which of the following is is the correct IUPAC name of the following structure?
A. (S )-3-ethyl-2-methylhexane )-3-ethyl-2-methylhexane B. ( R)-3-ethyl-2-methylhexane C. (S )-3-ethyl-2-methylpentane )-3-ethyl-2-methylpentane D. ( R)-3-ethyl-2-methylpentane Ans: B Topic: Assigning Configuration Section 3 Difficulty: Easy 49. Which of the following is is the correct IUPAC name of the following structure?
A. (S )-2-ethylhexane )-2-ethylhexane B. (S )-3-methylheptane )-3-methylheptane C. ( R)-2-ethylhexane D. ( R)-3-methylheptane Ans: D Topic: Assigning Configuration Section 3 Difficulty: Easy 50. Rank the following from highest to lowest priority according to the Cahn-IngoldPrelog system. A. -F B. -H C. -OH D. -SH Ans: D,A,C,B Topic: Assigning Configuration Section 3 Difficulty: Easy 51. Rank the following from highest to lowest priority according to the Cahn-IngoldPrelog system. A. -CH3 B. -CN C. -CH2OH D. -Br Ans: D,C,B,A Topic: Assigning Configuration Section 3 Difficulty: Easy
52. Rank the following from highest to lowest priority according to the Cahn-IngoldPrelog system. A. -CH2CH3 B. -CHCH2 C. -CCH D. -CH3 Ans: C,B,A,D Topic: Optical Activity Section 4 Difficulty: Medium 53. What is the % ee of a sample of carvone that exhibits a specific rotation of 20, given that the specific rotation of ( R)-carvone is 61? Ans: 33% Topic: Optical Activity Section 4 Difficulty: Medium 54. What is the % ee of a sample of carvone that exhibits a specific rotation of 40, given that the specific rotation of ( R)-carvone is 61? Ans: 66% Topic: Optical Activity Section 4 Difficulty: Medium 55. If a sample of carvone gives a specific rotation of 60 and the specific rotation of ( R)-carvone is 61, does the unknown sample primarily primarily have the R or S absolute configuration? Ans:
R
Topic: Optical Activity Section 4 Difficulty: Medium 56. If a sample of carvone gives a specific rotation of 0 and the specific rotation of pure ( R)-carvone is 61, what is the the configuration of the unknown sample? Ans: neither, it is a racemate Topic: Optical Activity Section 4 Difficulty: Hard
57. What is the specifi specificc rotation rotation of pure (S )-carvone )-carvone if a sample of ( R)-carvone of 85% ee has a specific rotation of 54? Ans: 64 Topic: Optical Activity Section 4 Difficulty: Hard 58. What is the specifi specificc rotation rotation of pure (S )-carvone )-carvone if a sample of ( R)-carvone of 85% ee has a specific rotation of 54? A. 61 B. 64 C. 0 D. 61 Ans: B Topic: Optical Activity Section 4 Difficulty: Medium 59. What is the specific rotation of a sample of carvone that is an equal mixture of the carvone has has a specific specific rotation rotation of 61. R and S enantiomers? ( R)- carvone A. 61 B. 64 C. 0 D. 61 Ans: C Topic: Optical Activity Section 4 Difficulty: Medium 60. What is the the percentage percentage of the R enantiomer in a sample of carvone that has a specific rotation of 30, given that the specific rotation of ( R)-carvone is 61? A. 26% B. 51% C. 49% D. 75% Ans: A Topic: Optical Activity Section 4 Difficulty: Medium
61. What is the the percentage percentage of the R enantiomer in a sample of carvone that has a specific rotation rotation of 30, given that the specific rotation rotation of ( R)-carvone is 61? Ans: 74.5% Topic: Optical Activity Section 4 Difficulty: Medium 62. What is the the percentage percentage of the S enantiomer in a sample of carvone that has a specific rotation of 30, given that the specific rotation of ( R)-carvone is 61? A. 25.5% B. 51% C. 49% D. 74.5% Ans: D Topic: Optical Activity Section 4 Difficulty: Medium 63. What is the the percentage percentage of the R enantiomer in a sample of carvone that has a specific rotation rotation of 20, given that the specific rotation rotation of ( R)-carvone is 61? A. 20% B. 66.5% C. 33.5% D. 61% Ans: B Topic: Optical Activity Section 4 Difficulty: Hard 64. What is the the percentage percentage of the R enantiomer in a sample of limonene that has a specific rotation rotation of 38, given that the specific rotation rotation of (S )-limonene )-limonene is 116? Ans: 33% Topic: Stereoisomer Relationships Section 5 Difficulty: Easy 65. What is the the relationship of the following two structures?
A. Enantiomers B. Diastereomers C. Constitutional isomers D. Identical Ans: B Topic: Stereoisomer Relationships Section 5 Difficulty: Easy 66. What is the the relationship of the following two structures?
A. Enantiomers B. Diastereomers C. Constitutional isomers D. Identical Ans: A Topic: Stereoisomer Relationships Section 5 Difficulty: Easy 67. What is the the relationship of the following two structures?
A. Enantiomers B. Diastereomers C. Constitutional isomers D. Identical Ans: A Topic: Stereoisomer Relationships Section 5 Difficulty: Easy 68. What is the the relationship of the following two structures?
A. Enantiomers B. Diastereomers C. Constitutional isomers D. Identical Ans: D Topic: Stereoisomer Relationships Section 5 Difficulty: Easy 69. What is the the relationship of the following two structures?
A. Enantiomers B. Diastereomers C. Constitutional isomers D. Identical Ans: B Topic: Stereoisomer Relationships Section 5 Difficulty: Medium 70. Draw the enantiomer enantiomer of the following following compound.
Ans: Topic: Stereoisomer Relationships Section 5 Difficulty: Medium 71. Draw the enantiomer enantiomer of the following following compound.
Ans: none. There is no stereocenter, so the compound is not chiral and thus does not have an enantiomer. Topic: Stereoisomer Relationships Section 5 Difficulty: Medium 72. Draw the enantiomer enantiomer of the following following compound.
Ans: Topic: Stereoisomer Relationships Section 5 Difficulty: Medium 73. Draw a diastereomer of the following compound.
Ans: Topic: Stereoisomer Relationships Section 5 Difficulty: Hard 74. Draw a diastereomer of the following compound.
Ans: None. There is only one stereocenter, so the compound is not chiral and thus does not have an enantiomer.
Topic: Stereoisomer Relationships Section 5 Difficulty: Hard 75. Draw a diastereomer of the following compound.
Ans: Topic: Stereoisomer Relationships Section 5 Difficulty: Hard 76. Draw all the stereoisomers of the following compound.
Ans: Topic: Stereoisomer Relationships Section 5 Difficulty: Hard 77. Draw all the stereoisomers of the following compound.
Ans: Topic: Stereoisomer Relationships Section 5 Difficulty: Easy 78. Which of the following choices is a diastereomer of the first structure structure shown.
Ans: C Topic: Stereoisomer Relationships
Section 5 Difficulty: Easy 79. Which of the following choices is a diastereomer of the first structure structure shown.
Ans: D Topic: Stereoisomer Relationships Section 5 Difficulty: Medium 80. Which of the following choices is a diastereomer of the first structure structure shown.
Ans: B Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Medium 81. Is the the following following a meso compound?
Ans: No Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Easy 82. Which of the the following following can exist as a meso isomer?
Ans: A Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Easy 83. Does the following contain a plane of symmetry?
Ans: yes
Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Easy 84. Draw in the plane of symmetry in the following following compound.
Ans: Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Easy 85. Draw in the plane of symmetry in the following following compound.
Ans: none Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Hard 86. Draw all of the possible stereoisomers stereoisomers of the following compound.
Ans: 7
Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Easy
87. How many stereoisom stereoisomers ers are possible possible for 2,3-dimeth 2,3-dimethylbuta ylbutane? ne? Ans: None. It has no stereocenters.
Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Hard 88. Draw all possible stereoisomers stereoisomers of 1,3,5-trimethylcyclohexane. Ans:
Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Medium 89. Draw Draw the the meso isomer of the following compound.
Ans: Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Hard 90. Draw Draw the the meso isomer of the following compound.
Ans: Topic: Symmetry and Chirality Chirality Section 6 Difficulty: Hard 91. Draw Draw the the meso isomer of the following compound.
Ans: Topic: Fischer Projections Section 7 Difficulty: Medium 92. Draw the Fischer projection of the following compound.
Ans: Topic: Fischer Projections Section 7 Difficulty: Medium 93. Draw the Fischer projection of the following compound.
Ans:
Topic: Fischer Projections Section 7 Difficulty: Hard 94. Draw the Fischer projection of the following compound.
Ans: Topic: Fischer Projections Section 7 Difficulty: Hard 95. Draw the Fischer projection of the following compound.
Ans: Topic: Fischer Projections Section 7 Difficulty: Hard 96. Convert the following Fischer projection into a wedge/dash drawing.
Ans: Topic: Fischer Projections Section 7 Difficulty: Hard 97. Convert the following Fischer projection into a wedge/dash drawing.
Ans: Topic: Fischer Projections Section 7 Difficulty: Hard 98. Convert the following Fischer projection into a wedge/dash drawing.
Ans: Topic: Fischer Projections Section 7 Difficulty: Hard 99. Convert the following Fischer projection into a wedge/dash drawing.
Ans: Topic: Fischer Projections Section 7 Difficulty: Medium 100. 100. Whic Which h of of the the foll follow owin ing g is is a cor corre rect ct Fisc Fische herr pro proje ject ctio ion n of the the fol follo lowi wing ng compound?
Ans: A Topic: Fischer Projections Section 7
Difficulty: Medium 101. 101. Whic Which h of of the the foll follow owin ing g is is a cor corre rect ct Fisc Fische herr pro proje ject ctio ion n of the the fol follo lowi wing ng compound?
Ans: C Topic: Fischer Projections Section 7 Difficulty: Medium 102. 102. Whic Which h of of the the foll follow owin ing g is is a cor corre rect ct Fisc Fische herr pro proje ject ctio ion n of the the fol follo lowi wing ng compound?
Ans: A
Topic: Fischer Projections Section 7 Difficulty: Medium 103. 103. Whic Which h of the the foll follow owin ing g stru struct ctur ures es is is the the cor corre rect ct wed wedge ge/d /das ash h draw drawin ing g of the the following Fischer projection?
Ans: B Topic: Fischer Projections Section 7 Difficulty: Medium 104. 104. Whic Which h of of the the foll follow owin ing g str struc uctu ture ress is is a cor corre rect ct wedg wedge/ e/da dash sh draw drawin ing g of the the following Fischer projection?
Ans: B Topic: Fischer Projections Section 7 Difficulty: Medium 105. 105.
What What is the the rela relati tion onsh ship ip betw betwee een n the the foll follow owin ing g two two mol molec ecul ules es??
A. Enantiomers B. Diastereomers C. Identical D. Constitutional Isomers Ans: A Topic: Fischer Projections Section 7 Difficulty: Easy 106. 106.
What What is the the rela relati tion onsh ship ip betw betwee een n the the foll follow owin ing g two two mol molec ecul ules es??
A. Enantiomers B. Diastereomers C. Identical D. Constitutional Isomers Ans: B Topic: Fischer Projections Section 7 Difficulty: Hard 107. 107.
What What is the the rela relati tion onsh ship ip betw betwee een n the the foll follow owin ing g two two mol molec ecul ules es??
A. Enantiomers B. Diastereomers C. Identical D. Constitutional Isomers Ans: C Topic: Fischer Projections Section 7 Difficulty: Medium 108. 108. Ass Assign ign the the foll follow owin ing g ster stereo eoce cent nter er as havi having ng the the R or S absolute configuration.
Ans:
S
Topic: Fischer Projections Section 7 Difficulty: Medium 109. 109. Ass Assign ign the the foll follow owin ing g ster stereo eoce cent nter er as havi having ng the the R or S absolute configuration.
Ans:
S
Topic: Fischer Projections Section 7 Difficulty: Hard 110. 110. Ass Assign ign the the foll follow owin ing g ster stereo eoce cent nter er as havi having ng the the R or S absolute configuration..
Ans: Neither Neither – no stereocenter stereocenter Topic: Fischer Projections Section 7 Difficulty: Medium
111. 111.
Prov Provid idee an IUPA IUPAC C name name for for the the foll ollowin owing g comp compou ound nd..
Ans: (S )-2-butanol )-2-butanol Topic: Fischer Projections Section 7 Difficulty: Medium 112. 112.
Whic Which h of of the the foll follow owin ing g is is the the IUPA IUPAC C nam namee for for the the fol follo lowi wing ng comp compou ound nd??
A. (S )-2-pentanol )-2-pentanol B. (S )-2-butanol )-2-butanol C. ( R)-2-pentanol D. ( R)-2-butanol Ans: B
Topic: Conformationally Mobile Systems Section 8 Difficulty: Hard 113. 113.
What What is the the rela relati tion onsh ship ip betw betwee een n the the two two stru struct ctur ures es show shown? n?
A. Same compound B. Enantiomers C. Diastereomers D. None of these Ans: A
Topic: Conformationally Mobile Mobile Systems + Spectroscopy Section 8 + Spectroscopy Difficulty: Hard 13
114. 114. How How man many y dis disti tinc nctt sig signa nals ls woul would d app appea earr in in the the (pro (proto tonn-de deco coup uple led) d) C NMR spectrum for the following compound?
A. 4 B. 5
C. 7 D. 8 Ans: A
Topic: Resolution of Enantiomers Section 9 Difficulty: Easy 115. 115. Whic Which h of of the the foll follow owin ing g str strat ateg egie iess wil willl NOT NOT be an effe effect ctiv ivee way way to separate enantiomers? A. Chiral chromatography B. Distillation C. Crystallization D. Chiral resolving agents Ans: B
Topic: Introduction to Stereoisomerism + Spectroscopy Section 2 + Spectroscopy Difficulty: Medium 13
116. 116. How How man many y dis disti tinc nctt res reson onan ance cess wou would ld appe appear ar in the the (pr (prot oton on-d -dec ecou oupl pled ed)) C NMR spectrum for the following compound?
A. 4 B. 5 C. 6 D. 7 Ans: A Topic: Introduction to Stereoisomerism + Spectroscopy Section 2 + Spectroscopy Difficulty: Medium 13
117. 117. How How man many y dis disti tinc nctt peak peakss wou would ld appe appear ar in the the (pr (prot oton on-d -dec ecou oupl pled ed)) C NMR spectrum for the following compound?
A. 4 B. 5 C. 6 D. 7 Ans: A
Topic: Introduction to Stereoisomerism + Spectroscopy Section 2 + Spectroscopy Difficulty: Medium 13
118. 118. How How man many y dis disti tinc nctt sig signa nals ls woul would d app appea earr in in the the (pro (proto tonn-de deco coup uple led) d) C NMR spectrum for the following compound?
A. 6 B. 7 C. 8 D. 9 Ans: A
Topic: Introduction to Stereoisomerism + Spectroscopy Section 2 + Spectroscopy Difficulty: Medium 13
119. 119. How How man many y dis disti tinc nctt res reson onan ance cess wou would ld appe appear ar in the the (pr (prot oton on-d -dec ecou oupl pled ed)) C NMR spectrum for the following compound?
Ans: 9
Topic: Integrated Section 5.3 + Chapter 4 Difficulty: Hard 120. 120. Redr Redraw aw the the str struc uctu ture re belo below w as a wed wedge ge-d -das ash h str struc uctu ture re and and lab label el any/ any/al alll stereocenters with their absolute configuration.
Ans:
Topic: Integrated Section 5.3 + Chapter 4
Difficulty: Hard 121. 121. Redr Redraw aw the the str struc uctu ture re belo below w as a wed wedge ge-d -das ash h stru struct ctur uree and and labe labell all all stereocenters with their absolute configuration.
Ans:
Topic: Integrated Section 5.5 + Chapter 4 Difficulty: Hard 122. 122. Iden Identi tiffy the the rel relat atiions onship hip bet betwe ween en the thesse two two str struc ucttures ures..
A. B. C. D.
Diastereomers Enantiomers The same compound Unrelated compounds
Ans: A.
Topic: Integrated Section 5.5 + Chapter 4 Difficulty: Hard 123. 123. Iden Identi tiffy the the rel relat atiions onship hip bet betwe ween en the thesse two two str struc ucttures ures..
A. B. C. D.
Diastereomers Enantiomers The same compounds Unrelated Unrelated compounds compounds
Ans: C.
Topic: Integrated Section 5.1 + 5.6 Difficulty: Hard 124. 124. How How many many poss possib ible le stere tereoi oissomer omerss are are the therre for for Cres Cresttor ® (rosuvastatin), a medication used to reduce cholesterol?
A. 2 B. 4 C. 6 D. 8 Ans: D.
Topic: Integrated Section 5.1 + 5.6 Difficulty: Medium 125. 125. The The str struc uctu ture re of Cres Cresto torr (ro (rosu suva vast stat atin in), ), a med medic icat atio ion n used used to to red reduc ucee cholesterol, is shown below. If the specific rotation rotation for this compound is known to be +100, what would wou ld be the specific rotation for the stereoisomer shown at the right?
A. +100 B. -100 C. 0 D. Impossible to predict Ans: D.
