combined
DESCRIPTION
comTRANSCRIPT
Edit Mode is: ON• For Instructors Only Quizzes Preview Test: Quiz1_Ozonolysis_Chem332H
Preview Test: Quiz1_Ozonolysis_Chem332
Description Chem 332 Quiz#1-‐‑Ozonolysis (part of Exam#1)
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this
Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
What is the missing product of this ozonolysis reaction?
A. Formaldehyde
B. Acetic acid
C. Acetaldehyde
D. Acetone
E. carbon dioxide
Question 1 0.5 points Save Answer
Which ozonide intermediate would result from the ozonolysis of styrene (vinylbenzene, C6H5CH=CH2)?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these.
Question 2 0.5 points Save Answer
?
Question Completion Status:
Which of the compounds (below) yields isopropanol as one of the products of 1) ozonolysis + 2) NaBH4 workup ?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these compounds
Question 3 0.5 points Save Answer
Which of the compounds (below) yields 2-butanone as one of the products of 1) ozonolysis + 2) workup with DMS ?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these compounds
Question 4 0.5 points Save Answer
Which compound forms carbonic acid under ozonolysis conditions with an oxidative workup with peroxide inacid?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Question 5 0.5 points Save Answer
Which compound is the least reactive under ozonolysis conditions with an oxidative workup with peroxide inacid?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Question 6 0.5 points Save Answer
Which molozonide will form formaldehde under ozonolysis conditions ?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Question 7 0.5 points Save Answer
Which ozonide will form formaldehde under ozonolysis conditions ?
Question 8 0.5 points Save Answer
Save All Answers Save and Submit
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Which ONE statement (below) is NOT true about the ozonolysis reaction.
A. Cyclic ketones can never be formed.
B. Cycloalkenes can undergo ozonolysis
C. Formation of a molozonide is a concerted process.
D. Aldehydes might be formed
E. Ozone is a 1,3-‐‑dipole
Question 9 0.5 points Save Answer
Which ONE is NOT used as a Reagent in the workup conditions of an ozonolysis reaction that produces analdehyde.
A. Acetic Acid
B. Zinc metal
C. Vinegar
D. DMSO
E. CH3-‐‑S-‐‑CH3
Question 10 0.5 points Save Answer
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 1 Preview Test: Quiz2_Conjugation_Chem332H
Preview Test: Quiz2_Conjugation_Chem332
Description Chem 332 Quiz#2 (part of Exam#1)
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this
Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Which structure is NOT conjugated ?
A.Compound A
B. Compound B
C.Compound C
D.Compound D
E. Compound E
Question 1 0.5 points Save Answer
Which Structures are conformers?
A. Structure A and Structure D
B. Structure A and Structure E
C. Structure B and Structure E
Question 2 0.5 points Save Answer
?
Question Completion Status:
C. Structure B and Structure E
D. Structure C and Structure E
E. Structure A and Structure C
Which diene is in the s-cis conformation AND in an (E) and (Z) configuration?
A. Structure A
B. Structure C
C. Structure B
D. Structure D
E. Structure E
Question 3 0.5 points Save Answer
Which conjugated diene is currently in an s-cis conformation ?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these compounds
Question 4 0.5 points Save Answer
Which conjugated diene is currently in an s-trans conformation ?
Question 5 0.5 points Save Answer
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Which resonance forms represent the intermediate carbocation that will produce the kinetic and thermodynamic products in this
addition reaction?
A. Structure B and Structure E
B. Structure A and Structure D
C.Structure C and Structure D
D. Structure B and Structure D
E. Structure B and Structure C
Question 6 0.5 points Save Answer
Which ONE statement is True about the addition reaction shown below?
A. The 1,4-‐‑addition product is shown and the major product under thermodynamic control.
B. The 1,4-addition product is shown and the major product under kinetic control.
C. The 1,2-‐‑addition product is shown and the major product under thermodynamic control.
Question 7 0.5 points Save Answer
D.The 1,2-addition product is shown and the favored product under kinetic control.
Which ONE statement is True about the addition reaction shown below?
A. The 1,4-addition product is shown and the major product under kinetic control.
B. The 1,2-addition product is shown and the favored product under kinetic control.
C. The 1,2-‐‑addition product is shown and the major product under thermodynamic control.
D. The 1,4-‐‑addition product is shown and the major product under thermodynamic control.
Question 8 0.5 points Save Answer
Which ONE statement is True about the overall reaction shown below?
A. This is the Cope Rearrangement, which in this case, favors the production of a more conjugated system.
B. This is the Diels-Alder Reaction, which requires one of the reactants to be an s-cis diene.
C. This is the Cope Rearrangement, which requires the reactant to be conjugated.
D. This is the Cope Rearrangement, which produces a product that is a conformational change.
E. This is the Diels-‐‑Alder Reaction, which is a 6-‐‑electron, concerted process.
Question 9 0.5 points Save Answer
Which ONE compound is major product of this reaction?
A. 2,5-‐‑dimethyl-‐‑1,5-‐‑hexadiene
B. 2,5-‐‑dimethyl-‐‑2,4-‐‑hexadiene
C. 2,5-‐‑dimethyl-‐‑1,4-‐‑hexadiene
D. (Z)-‐‑2,5-‐‑dimethyl-‐‑1,3-‐‑hexadiene
E. (E)-‐‑2,5-‐‑dimethyl-‐‑1,3-‐‑hexadiene
Question 10 0.5 points Save Answer
Save All Answers Save and Submit
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 1 Preview Test: Quiz3_DielsAlder_Chem332H
Preview Test: Quiz3_DielsAlder_Chem332
Description Chem 332 Quiz#3-‐‑DielsAlder (part of Exam#1)
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this
Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Choose the structures of the starting diene and dienophile necessary to prepare this molecule?
A.
B.
C.
D.
Question 1 0.5 points Save Answer
Which of the compounds will react as a diene in a Diels-Alder reaction?
A. Compound A
B. Compound B
Question 2 0.5 points Save Answer
?
Question Completion Status:
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Which compound can react as a diene in a Diels-Alder reaction?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 3 0.5 points Save Answer
Identify the diene and dienophile which would give the Diels Alder product shown.
Question 4 0.5 points Save Answer
A. Reagents A
B. Reagents B
C. Reagents C
D. Reagents D
E. None of these.
Which compound CANNOT react as a diene in a Diels-Alder reaction?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 5 0.5 points Save Answer
Identify the diene used in the reaction shown above.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 6 0.5 points Save Answer
What is the product of the reaction shown below?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 7 0.5 points Save Answer
Question 8 0.5 points Save Answer
Which conjugated diene would react the fastest with maleic anhydride?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Which structure (A-E) represents the product of this reaction?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Question 9 0.5 points Save Answer
Which structure (A-E) represents the product of this reaction?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. Compound E
Question 10 0.5 points Save Answer
Save All Answers Save and Submit
E. Compound E
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 1 Preview Test: Quiz4_Alcohols_Chem332H
Preview Test: Quiz4_Alcohols_Chem332
Description Chem 332 Quiz#2 Alcohols -‐‑ Part of Exam#1
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this
Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Choose the best set of reagents for carrying out the chemical conversion (below).
A. 1) TMS-‐‑Cl, Et3N
2) MeMgBr, ether
3) H3O+
B. None of these Reagent Sets.
C. 1) NaBH4, MeOH
2) MeOH
D. 1) PBr3
2) MeOH
E. 1) LiAlH4, ether
2) H3O+
3) MeMgBr, ether
4) H3O+
Question 1 0.5 points Save Answer
Give the common names for each of these compounds.
A. allyl alcohol
ethylene glycol
Question 2 0.5 points Save Answer
?
Question Completion Status:
ethylene glycol
ethanol
hydroquinone
B. vinyl alcohol
propylene glycol
ethanol
quinone
C. vinyl alcohol
ethylene glycol
ethanol
hydroquinone
D. allyl alcohol
propylene glycol
ethanol
quinone
The best reagents for accomplishing this transformation are:
A. 1) Hg(OAc)2, H2O
2) NaBH4
B. 1) BH3, THF
2) H2O2, -‐‑OH
C. 1) OsO4, pyridine
2) NaHSO4, H2O
D. 1) m-‐‑CPBA, CH2Cl2
2) H3O+
E. None of these Reagent Sets.
Question 3 0.5 points Save Answer
A highly useful and general method for the synthesis of alcohols is the addition of Grignard reagents to carbonylcompounds. Show what Grignard reaction would NOT be used to prepare the alcohol (below).
Question 4 0.5 points Save Answer
A. Reactants A
B. Reactants B
C. Reactants C
D. Reactants D
Give the major organic product for the reaction below.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
Question 5 0.5 points Save Answer
Give the major organic product for the reaction below.
Question 6 0.5 points Save Answer
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Give the major organic product for the reaction below.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 7 0.5 points Save Answer
Give the major organic product from the reaction below.
Question 8 0.5 points Save Answer
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Choose the best set of reagents for carrying out the chemical conversion (below).
A. None of these Reagent Sets.
B. 1) TMS-‐‑Cl, Et3N
2) MeMgBr, ether
3) H3O+
C. PCC, CH2Cl2
D. 1) NaBH4, ethanol
2) H3O+
E. 1) LiAlH4, ether
2) H3O+
Question 9 0.5 points Save Answer
Choose the best set of reagents for carrying out the chemical conversion (below).
A. 1) NaBH4, ethanol
Question 10 0.5 points Save Answer
Save All Answers Save and Submit
1) NaBH4, ethanol
2) H3O+
B. 1) TMS-‐‑Cl, Et3N
2) MeMgBr, ether
3) H3O+
C. None of these Reagent Sets.
D. PCC, CH2Cl2
E. 1) PBr3
2) NaOH
Save and Submit
Edit Mode is: ON• For Instructors Only Quizzes Preview Test: Quiz5_Aldehydes and Ketones_Chem332H
Preview Test: Quiz5_Aldehydes and Ketones_Chem332
Description Chem 332 Quiz#5 (part of Exam#1)
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this
Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
What functional group results from the reaction shown below?
A. aldehyde
B. carboxylic acid
C. alcohol
D. conjugated diene
E. ketone
Question 1 0.5 points Save Answer
What is the product of the reaction shown below?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 2 0.5 points Save Answer
Question 3 0.5 points Save Answer
?
Question Completion Status:
What is the best reagent to use for the reaction shown below?
A. 1) NaBH4, ethanol 2) H3O+
B. NaCN, DMSO
C. NaOH, methanol, heat
D. 1) CH2=P(Ph)3 2) H3O+
E. PCC
Question 3 0.5 points Save Answer
Which of the compounds below is an acetal?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 4 0.5 points Save Answer
What is the product of the reaction below?
A. 3-‐‑methylpentane
B. 3-‐‑methyl-‐‑1-‐‑pentyne
C. 3-‐‑methylhexane
D. 3-‐‑methyl-‐‑2-‐‑pentanol
E. 3-‐‑methyl-‐‑2-‐‑pentene
Question 5 0.5 points Save Answer
Question 6 0.5 points Save Answer
What is the product of the reaction below?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Conpounds
Question 6 0.5 points Save Answer
What are the products of the reaction shown below?
A. cyclohexanone and ethanol
B. cis-‐‑1,2-‐‑cyclohexanediol and ethanol
C. trans-‐‑1,2-‐‑cyclohexanediol and ethanol
D. cyclohexanone and ethanal
E. cis-‐‑1,2-‐‑cyclohexanediol and ethanal
Question 7 0.5 points Save Answer
What is the product of the reaction shown below?
A. 4-‐‑methyl-‐‑1-‐‑pentene
B. 1-‐‑pentene
C. 2-‐‑methyl-‐‑1-‐‑hexene
D. 2-‐‑methyl-‐‑1-‐‑pentene
Question 8 0.5 points Save Answer
Save All Answers Save and Submit
E. 2-‐‑methyl-‐‑2-‐‑propyloxirane
Identify the missing reagent for the reaction shown below.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 9 0.5 points Save Answer
What is the product of the reaction sequence shown below?
A. 2-‐‑methyl-‐‑2-‐‑hexene
B. 2,3-‐‑dimethyl-‐‑2-‐‑pentene
C. 2-‐‑methyl-‐‑1-‐‑hexene
D. 3-‐‑methyl-‐‑1-‐‑hexene
E. 2-‐‑methyl-‐‑1-‐‑pentene
Question 10 0.5 points Save Answer
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 2 Preview Test: Quiz6_Carboxylic Acids_Chem332H
Preview Test: Quiz6_Carboxylic Acids_Chem332
Description Chem 332 Quiz#6 (part of Exam#2)
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this Test]
Multiple Attempts This Test allows multiple attempts.
Force Completion Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Choose the BEST reagent(s) for carrying out the reaction below.
A. 1. BH3 2. H3O+
B. NaBH4, ethanol
C. acid, water, heeeet
D.Tollens’ Reagent
E. CH3I
Question 1 0.5 points Save Answer
Which reagent CANNOT ever be used on an aldehyde to produce a carboxylic acid?
A. the oxygen in air + water
B. Ag2O + base
C. hydrogen peroxide
D. The Silver Mirror Test
E. LAH
Question 2 0.5 points Save Answer
Name the compounds below.
A. 3-‐‑propylpentanoic acid
4-‐‑hydroxy-‐‑3-‐‑methylbutanoic acid
2-‐‑bromo-‐‑4-‐‑ethylbenzenecarboxylic acid
B. 3-‐‑ethylhexanoic acid
4-‐‑hydroxy-‐‑3-‐‑methylbutanoic acid
4-‐‑ethylbenzenecarboxylic acid
C. 3-‐‑propylpentanoic acid
3-‐‑(hydroxymethyl)butanoic acid
2-‐‑bromo-‐‑4-‐‑ethylbenzenecarboxylic acid
D. 3-‐‑ethylhexanoic acid
4-‐‑hydroxy-‐‑3-‐‑methylbutanoic acid
2-‐‑bromo-‐‑meta-‐‑ethylbenzenecarboxylic acid
Question 3 0.5 points Save Answer
?
Question Completion Status:
E. 3-‐‑ethylhexanoic acid
4-‐‑hydroxy-‐‑3-‐‑methylbutanoic acid
2-‐‑bromo-‐‑4-‐‑ethylbenzenecarboxylic acid
Which structure below is the tetrahedral intermediate in the acid-catalyzed Fischer esterification reaction of acetic acid, CH3CO2H, and ethanol,CH3CH2OH?
A. A
B. B
C. C
D. D
E. None of these structures
Question 4 0.5 points Save Answer
See the oxygen atom (with the red arrow) in the ethanol structure over the equilibrium arrow? Which Fischer Esterification product has anarrow correctly pointing at that same oxygen?
A. Structure A
B. Structure B
C. Structure C
D. Structure D
E. None of the Structures
Question 5 0.5 points Save Answer
Identify the lactone resulting from the INTRAmolecular Fischer-‐‑Esterification of the compound shown below.
Question 6 0.5 points Save Answer
A. Structure A
B. Structure B
C. Structure C
D. Structure D
E. None of the Structures
To convert a nitrile to a carboxylic acid, as shown below, you need to:
A. reduce with H2
B. hydrolyze with aqueous acid (H3O+) and heat.
C. reduce with LiAlH4
D.oxidize with Ag+
E. add a Grignard reagent
Question 7 0.5 points Save Answer
Choose the BEST reagent(s) for carrying out the reaction below.
A.O3, then Zn and HOAc
B. 1. Mg, ether 2. CO2 3. H3O+
C. KMnO4 under basic conditions with heat
D.1. NaCN 2. H2SO4, H2O, heat
E. Tollens’ Reagent
Question 8 0.5 points Save Answer
Which carboxylic acid has the highest boiling point?
A. glycolic acid
B. butanoic acid
C. 2-‐‑hydroxypropanoic acid
Question 9 0.5 points Save Answer
Save All Answers Save and Submit
D. propionic acid
E. α-‐‑hydroxybutyric acid
What are the names of these carboxylic acids?
A. glycolic acid
lactic acid
α-‐‑methylbutyric acid
B. 1-‐‑hydroxypropionic acid
glycolic acid
α-‐‑methylbutanoic acid
C. 2-‐‑hydroxypropanoic acid
salicylic acid
α-‐‑methylbutyric acid
D. glycolic acid
2-‐‑hydroxyethanoic acid
α-‐‑methylbutyric acid
E. glycolic acid
lactic acid
1-‐‑methylbutyric acid
Question 10 0.5 points Save Answer
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 2 Preview Test: Quiz7_Enols-‐‑Enolates_Chem332H
Preview Test: Quiz7_Enols-‐‑Enolates_Chem332
Description Chem 332 Quiz#7 (part of Exam#2)
Instructions
Timed Test This Test has the time limit of 2 hour. You are notified when time expires, and you may continue or submit.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this Test]
Multiple Attempts This Test allows multiple attempts.
Force Completion Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Rank the hydrogens (in the compound below) in order of decreasing acidity (most acidic proton listed first). Be careful, this question is a classic MCAT question and is harder that you might think. Keep track of ALL the alpha protons. (~Dr. K.).
A. Ha > Hb > Hc ≈ Hd
B. Ha > Hb ≈ Hc > Hd
C. Hb > Ha ≈ Hd > Hc
D. Ha > Hb ≈ Hd > Hc
E. Ha ≈ Hb > Hc ≈ Hd
Question 1 0.5 points Save Answer
Rank the compounds below in order of decreasing acidity (compound with the most acidic proton should be listed first).
A. III > II > I
B. II > III > I
C. II > I > III
D. I > II > III
E. I > III > II
Question 2 0.5 points Save Answer
Which one of the following compounds has two different enol forms?
A. 2,2-dimethylcyclohexanone
B. 3,3-dimethylcyclohexanone
C. 4,4-dimethylcyclohexanone
Question 3 0.5 points Save Answer
?
Question Completion Status:
4,4-dimethylcyclohexanone
D.cyclohexanone
How many alpha hydrogens are there on 2,4-dimethyl-3-pentanone?
A. four (4)
B. None
C. six (6)
D. three (3)
E. two (2)
Question 4 0.5 points Save Answer
Alkylation with methyl iodide of the kinetic enolate of the compund shown below produces which product?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
Question 5 0.5 points Save Answer
Which one of the following cannot form an enolate anion? Look at your lecture notes on enolate formation (~ Dr. K.)
A. 2,3-dimethylbutanal
B. 2,2-dimethylbutanal
C. 2-ethylbutanal
D.3,3-dimethylbutanal
Question 6 0.5 points Save Answer
What is the product of the reaction below?
Question 7 0.5 points Save Answer
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of the Compounds
Arrange the compounds (below) in order of decreasing acidity (most acidic compound listed first).
A. III > II > I
B. II > III > I
C. III > I > II
D. I > II > III
Question 8 0.5 points Save Answer
Which one of the optically active compounds (below) racemizes (loses all optical activity) in dilute KOH/CH3OH solution? Start by drawing the tautomerization mechanism, while looking at what happens to the chiral center. - Dr. K.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
Question 9 0.5 points Save Answer
Identify the major organic product of the above reaction.
Question 10 0.5 points Save Answer
Save All Answers Save and Submit
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of the Compounds
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 2 Preview Test: Quiz8_EnolateAlkylations_Chem332H
Preview Test: Quiz8_EnolateAlkylations_Chem332
Description Chem 332 Quiz#8-‐‑Enolate Alkylations -‐‑ Part of Exam 2.
This Quiz is due (to be submitted online) before Sunday (03/09/2014) at Noon (12pm).You may submit this quiz as many times as you wish -‐‑ knock yourselves out. Your Highest Score will be recorded. Use this Quiz to identify the topics that cause you trouble.
These Quiz questions are meant to give you feedback on how well you are digesting the course material -‐‑ before you take the exam. Submit your Quiz results before the end
of the 2-‐‑hour time limit AND before the listed deadline.
You should see your grade on the Compass 2G Grade Book immediately upon submitting your Quiz answers. Make sure to confirm that Compass actually awarded you the
Quiz Points.
Instructions
Timed Test This Test has the time limit of 2 hour. You are notified when time expires, and you may continue or submit.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Predict the product from the reaction sequence (below).
A. Compound A
B. Compound B
C. Compound C
D. Compound D
Question 1 0.5 points Save Answer
What gas evolves at the end of the acetoacetic ester sequence?
A. H2
B. SO2
C. carbon dioxide
D. oxygen
E. H2O vapor
Question 2 0.5 points Save Answer
Which of the following is used in the enolate chemistry shown below?
Question 3 0.5 points Save Answer
?
Question Completion Status:
A. Compound A
B. Compound B
C. Compound C
D. Compound D
Name the compounds.
A. malaeic anhydride, enol of acetone, LDA, Sodium acetate & acetoacetic ester
B. diethyl malonate, enolate of acetone, LDA, Sodium Ethoxide & ethyl acetoacetate
C. ethyl acetoacetate, enolate of acetone, LDS, Sodium Ethoxide & ethyl acetoacetate
D. diethyl malonate, enol of acetone, LSD, Sodium acetate & acetoacetic ester
E. diethyl malonate, enol of acetone, LDA, Sodium Ethoxide & ethyl acetoacetate
Question 4 0.5 points Save Answer
Lithium diisoproylamide is a _________
A.weak base that only attacks protons on polar O-H bonds.
B. good nucleophile, but cannot attack protons alpha to a carbonyl group.
C. sterically hindered base, which is a great nucleophile that adds to carbonyl functional groups.
D. "baby hydride", which attacks protons at the less sterically crowded side of the compound.
E. sterically hindered base, which attacks alpha protons at the less sterically crowded side of the compound.
Question 5 0.5 points Save Answer
Give the major organic product of the reaction (below).
Question 6 0.5 points Save Answer
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Give the major organic product of the reaction (below).
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 7 0.5 points Save Answer
Give the major organic product of the reaction (below) done at RT (room temperature).
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 8 0.5 points Save Answer
In the acetoacetic acid synthesis (shown below), which one of the following electrophiles is used?
A. Compound A
Question 9 0.5 points Save Answer
Save All Answers Save and Submit
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Componds.
Alkylation with methyl iodide of the kinetic enolate of the compound (shown below) produces which product?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds
Question 10 0.5 points Save Answer
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 2 Preview Test: Quiz9_AldolClaisen_Chem332H
Preview Test: Quiz9_AldolClaisen_Chem332
Description Chem 332 Quiz#9-‐‑AldolClaisen -‐‑ Part of Exam 2.
This Quiz is due (to be submitted online) before Sunday (03/09/2014) at Noon (12pm).You may submit this quiz as many times as you wish -‐‑ knock yourselves out. Your Highest Score will be recorded. Use this Quiz
to identify the topics that cause you trouble. These Quiz questions are meant to give you feedback on how well you are
digesting the course material -‐‑ before you take the exam. Submit your Quiz results before the end of the 2-‐‑hour time limit
AND before the listed deadline.
You should see your grade on the Compass 2G Grade Book immediately upon submitting your Quiz answers. Make sure to
confirm that Compass actually awarded you the Quiz Points.
Instructions
Timed Test This Test has the time limit of 2 hour. This Test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Consider the reaction below and select the the best answer:
A. B forms a nucleophilic enolate; A is the electrophile; C is the base.
B. Both A and C are the electrophiles; B is the nucleophile.
C. A forms a nucleophilic enolate; B is the electrophile; C is the base.
D. Both A and B are the electrophiles; C is the nucleophile.
E. Dr. K. is making-‐‑up this reaction; A isn't even a real compound; and C is the base.
Question 1 0.5 points Save Answer
What is the aldol self-addition product of propanal?
A. 4-hydroxyhexanal
B. 5-hydroxyhexanal
C. 2-hydroxy-2-methylpentanal
D.3-hydroxy-2-methylpentanal
E. 3-hydroxyhexanal
Question 2 0.5 points Save Answer
?
Question Completion Status:
E. 3-hydroxyhexanal
Benzalacetone is the crossed aldol condensation product formed between benzaldehyde and acetone. Which of the structures(below) is of benzalacetone? Remember the difference between a condensation product and an addition product. ~ Dr. K.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Question 3 0.5 points Save Answer
Which is the product of this intramolecular aldol condensation reaction?
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Question 4 0.5 points Save Answer
Question 5 0.5 points Save Answer
Identify the starting reactant needed to make the cyclic ketone product (shown below) by an intramolecular aldolcondensation reaction.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Question 5 0.5 points Save Answer
Identify the starting reactants needed to make the product (shown below) by a mixed aldol condensation.
A. acetophenone (methyl phenyl ketone) and butanal
B. acetophenone (methyl phenyl ketone) and 2-butanone
C. benzaldehyde (C6H5CH=O) and 2-pentanone
D.benzaldehyde (C6H5CH=O) and 3-pentanone
Question 6 0.5 points Save Answer
Which of the following is the Claisen self-condensation product of ethyl propanoate, CH3CH2CO2Et ?
Question 7 0.5 points Save Answer
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Identify the missing reactant in the reaction shown below. Knowing the product is a 1,3-keto ester should help.Study your reactions by covering each reactant in your lecture notes and determine the reactant structure. Dr. K.
A. ethyl acetate, CH3CO2Et
B. diethyl oxalate, EtO2CCO2Et
C. Carbonic Acid, HOCO2H
D.ethyl formate, HCO2Et
E. diethyl carbonate, (EtO)2C=O
Question 8 0.5 points Save Answer
Which one of the following cannot give a Claisen condensation product?
A.H2C=CHCH2CH2CO2Et
B. (CH3)3CCO2Et
C.C6H5CH2CO2Et
D. (CH3)3CCH2CO2Et
E. (CH3)2CHCH2CO2Et
Question 9 0.5 points Save Answer
Which of the following is the product of the reaction sequence shown below?
Question 10 0.5 points Save Answer
Save All Answers Save and Submit
A. 4-methyl-3-hexanone
B. 4-octanone
C. 4-heptanone
D.2-ethylpentanoic acid
E. 2-propylbutanoic acid
Save and Submit
Edit Mode is: ON• Course Content Quizzes for Exam 2 Preview Test: Quiz10_MichaelEnamineRobinson_Chem332H
Preview Test: Quiz10_MichaelEnamineRobinson_Chem332
Description Chem 332 Quiz#10-‐‑MichaelEnamineRobinson -‐‑ Part of Exam 2.
This Quiz is due (to be submitted online) before Sunday (03/09/2014) at Noon (12pm).You may submit this quiz as many times as you wish -‐‑ knock yourselves out. Your Highest Score will be recorded. Use
this Quiz to identify the topics that cause you trouble. These Quiz questions are meant to give you feedback on how well
you are digesting the course material -‐‑ before you take the exam. Submit your Quiz results before the end of the 2-‐‑hour
time limit AND before the listed deadline.
You should see your grade on the Compass 2G Grade Book immediately upon submitting your Quiz answers. Make sure
to confirm that Compass actually awarded you the Quiz Points.
Instructions
Timed Test This Test has the time limit of 2 hour. You are notified when time expires, and you may continue or submit.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear when previewing this
Test]
Multiple
Attempts
This Test allows multiple attempts.
Force
Completion
Once started, this Test must be completed in one sitting.
Save All Answers Save and Submit
Which carbon atoms are most susceptible to nucleophilic attack AND which carbon would be attacked by a cuprate ?
A. II and III -a cuprate would add at carbon IV
B. II and III -a cuprate would add at carbon II
C. II and IV -a cuprate would add at carbon II
D. II and IV -a cuprate would add at carbon IV
E. III and IV -a cuprate would add at carbon IV
Question 1 0.5 points Save Answer
Which one of the following reagents adds a methyl group by conjugate (1,4-addition) addition to an α,β-unsaturatedketone or aldehyde?
A. (CH3)2CuLi
Question 2 0.5 points Save Answer
?
Question Completion Status:
A. (CH3)2CuLi
B. CH3MgBr
C. LAH
D.CH3Li
E. Hg(OAc)2
Heating a mixture of 1,3-diphenylacetone and acrolein with a weak base gives a product, C18H16O, in 53% yield. Themechanism for product formation is a Michael addition followed by an intramolecular aldol condensation. Which of theabove structures is the product of this reaction?Also, as a side question, do you know the Name Reaction for this reaction sequence? ~Dr. K.
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Question 3 0.5 points Save Answer
A Robinson annulation reaction is shown below. Identify the missing reagent in the first step.
This is just ONE Name Reaction done backwards. Could you do this problem if it wasn't identified as a Robinson Annulation? How about if the possible answers weren't visible?How about if it was in a 2-reaction sequence?~ Dr. K.
A. Compound A
Question 4 0.5 points Save Answer
Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
The Stork Enamine reaction is a Michael addition on an enone.Predict the product of the reaction sequence (shown below).
A. Compound A
B. Compound B
C. Compound C
D. Compound D
E. None of these Compounds.
Question 5 0.5 points Save Answer
To make this compound (below), you need:Select the BEST answer available
A. Gilman Reagent and an enone
B. An enamine and a ketone
C. Gilman Reagent and an enamine
D. MethylGrignard and an enone
E. Gilman Reagent and a ketone
Question 6 0.5 points Save Answer
Question 7 0.5 points Save Answer
What just happened here ??
A. Conjugate (Michael) Addition + Robinson Annulation
B. Direct (1,2-‐‑) Addition + Aldol
C. Conjugate (Michael) Addition + Aldol
D. Direct (1,2-‐‑) Addition + Claisen
E. Conjugate (Michael) Addition + Dieckmann
How can you make a 1,4-‐‑dicarbonyl compound?
A. Gilman Reagent + Aldehyde
B. Enamine + α-‐‑bromoester
C. Enamine + Enone
D. Cuprate + Ester
E. Enolate + enone
Question 8 0.5 points Save Answer
How can you make a 1,5-‐‑dicarbonyl compound?
A. Enamine + Alkylhalide
B. Cuprate + Ester
C. Gilman Reagent + Aldehyde
D. Enolate + enone
E. Enamine + α-‐‑bromoester
Question 9 0.5 points Save Answer
How can you make a cyclohexenone?
A. Dieckmann
B. Robinson
C. Michael
D. Hell-‐‑Volhardt-‐‑Zelinski
E. Aldol
Question 10 0.5 points Save Answer
Save and Submit
Preview Test: Quiz11_AminePreps_Chem332
Test InformationDescription Chem 332 Quiz#11-Amine Preps - Part of Exam 3.
InstructionsTimed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 secondsremain.[The timer does not appearwhen previewing this test]
MultipleAttempts
This test allows multiple attempts.
Saving All Answers Save and Submit
Select the name for this compound below.
QUESTION 10.5 points Save Answer
0.5 points Save Answer
Question Completion Status:
A. N,N-diethyl-2-pentanamine
B. N,N-diethyl-1-methylbutanamine
C.N,N-diethyl-3-pentanamine
D. N,N-diethyl-4-pentanamine
E. N-ethyl-4-methyl-3-hexanamine
Which must have a higher boiling point (bp) than N,Ndimethyl2hexanamine ?(Select the BEST answer based on your knowledge of the relationshipbetween structure and bp)
A. all tertiary amines
B. secondary amine with lower mol. weight (fewer carbons)
C.secondary amine with higher mol. weight (more carbons)
D. tertiary amine with lower mol. weight (fewer carbons)
E. all amines with at least six total carbons
QUESTION 2
The compound below is classified as a(n):
QUESTION 3
0.5 points Save Answer
0.5 points Save Answer
A. secondary amine.
B.amide.
C.arylamine
D. tertiary amine.
E. primary amine.
What is the product of the reaction sequence shown below ?
QUESTION 4
0.5 points Save Answer
A. Compound A
B. Compound B
C.Compound C
D. Compound D
E. None of these Compounds
What is the product of the reaction sequence shown below ?
QUESTION 5
0.5 points Save Answer
A. Compound A
B. Compound B
C.Compound C
D. Compound D
E. None of these Compounds
What is the product of the reaction shown below ?
QUESTION 6
A. Compound A
B. Compound B
C.Compound C
D. Compound D
E. None of these Compounds
What is the product of the reaction sequence shown below ?
QUESTION 7
0.5 points Save Answer
0.5 points Save Answer
A. Compound A
B. Compound B
C.Compound C
D. Compound D
E. None of these Compounds
What is the product of the reaction sequence shown below ?
QUESTION 8
0.5 points Save Answer
A. Compound A
B. Compound B
C.Compound C
D. Compound D
E. None of these Compounds
The structure of heroin is shown below.Which ONE phrase is NOT true about this compound?
QUESTION 9
0.5 points Save Answer
A. tertiary amine
B. opioid
C.can be derived from morphine
D. major component of poppy pods
E. highly addictive / habit forming
Which is NOT True about N-ethylaniline ?A. chiral at very low temperatures
B. sp3 hybridized nitrogen
C.cannot form hydrogen bonds
D. secondary amine
E. arylamine
QUESTION 10
Preview Test: Quiz12_AmineRxns_Chem332
Test InformationDescription Chem 332 Quiz#12-AmineRxns - Part of Exam 3.
InstructionsTimed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does not appear whenpreviewing this test]
MultipleAttempts
This test allows multiple attempts.
Saving All Answers Save and Submit
What is the product of the reaction sequence shown below?
QUESTION 10.5 points Save Answer
0.5 points Save Answer
Question Completion Status:
A. Compound A
B. Compound B
C.Compound C
D.Compound D
What is the major product of the reaction sequence below ?
A. Compound A
B. Compound B
C.Compound C
QUESTION 2
0.5 points Save Answer
D.Compound D
Which is true about the basicity of the nitrogen lone pairs in the compound below?
A. The alkyl amine is more basic than the imine
B. The heterocyclic amine is more basic than the imine
C.The sp2 hybridized amine is the most basic
D.The imine is the most basic
E. The secondary amine is the most basic
QUESTION 3
Which ONE answer most accurately describes the Structures (below)?
A. Structure 1 is a nitrite ion
B. Structure 3 is a nitrosamine
C.Structure 2 is a nitrosonium ion
D.Structure 1 is a nitrosonium ion
E. Structure 2 is diazo compound
QUESTION 4
0.5 points Save Answer
Which ONE answer most accurately describes the Structures (below)?
QUESTION 5
0.5 points Save Answer
A. Structure 1 is a diazonium ion
B. Structure 3 is a nitrite ion
C.Structure 2 is a nitrosonium ion
D.Structure 2 is a nitrosamine
E. Structure 3 is a diazonium ion
Which ONE answer most accurately ranks the basicity of subtituted anilines ? (Most basic compound on the left / Least basic compound on the right)
A. 4-methoxyaniline > p-nitroaniline > p-chloroaniline
B. 4-methoxyaniline > p-chloroaniline > p-nitroaniline
C.p-nitroaniline > p-chloroaniline > 4-methoxyaniline
D.4-cyanoaniline > p-methoxyaniline > p-nitroaniline
E. 4-cyanoaniline > p-chloroaniline > p-nitroaniline
QUESTION 6
0.5 points Save Answer
Which ONE answer most accurately lists the reaction steps for this transformation ?
A. 1)Sn+HCl 2)HONO+HCl 3)copper(I)chloride
B. 1)H2-Pd/Carbon 2)reductive amination 3)copper(I)chloride
QUESTION 7
0.5 points Save Answer
0.5 points Save Answer
C.1)hydrogenation 2)diazotization 3)Sandmeyer
D.1)hydrogenation 2)nitrosation 3)Sandmeyer
E. 1)Sn+HCl 2)nitrosation 3)copper(I)oxide
Which ONE answer most accurately lists the reaction steps for this transformation ?
A. 1)Sn+HCl 2)HONO+HCl 3)copper(I)chloride
B. 1)hydrogenation 2)dialkylation 3)Sandmeyer
C.1)H2-Pd/Carbon 2)reductive amination 3)copper(I)chloride
D.1)Sn+HCl 2)nitrosation 3)copper(I)oxide
E. 1)hydrogenation 2)nitrosation 3)Sandmeyer
QUESTION 8
What is the product of the reaction sequence shown below ?This question is the most difficult of the entire quiz. So, here is a hint: This is a Name Reaction where the proton on the least hindered side of the ring is removed.Dr. K.
QUESTION 9
0.5 points Save Answer
0.5 points Save Answer
A. Compound A
B. Compound B
C.Compound C
D.Compound D
E. None of these Compounds
What is the product of the reaction sequence shown below ?
QUESTION 10
A. Compound A
B. Compound B
C.Compound C
D.Compound D
E. None of these Compounds
Preview Test: Quiz13_AminoAcids_Chem332
Test InformationDescription Chem 332 Quiz#13-AminoAcids - Part of Exam 3.
InstructionsTimed Test This test has a time limit of 2 hours.You will be notified when time expires, and
you may continue or submit.Warnings appear when half the time, 5 minutes, 1 minute, and 30seconds remain.[The timer does not appear when previewing this test]
MultipleAttempts
This test allows multiple attempts.
Humans are able to synthesize only 10 of the 20 common amino acids necessary for protein synthesis. The remaining 10 are called __________amino acids since they must be obtained from dietary sources.
A. deficient
B.nonessential
C.dietary
D.complex
E. essential
QUESTION 10.5 points Save Answer
QUESTION 2
0.5 points Save Answer
Question CompletionStatus:
Given the pKa data below, select the one statement that is most true.
A. Asparagine has a net positive charge in pH 5.4 buffer
B.Arginine has a net negative charge in pH 5.4 buffer
C.Alanine is exclusively a zwitterion in pH 9.9 buffer
D.Arginine side chain is polar acidic
E. Asparagine has a net neutral charge in pH 5.4 buffer
QUESTION 2
Given the pKa data below, select the one statement that is most true.
A. Asparagine has a net neutral charge in pH 8.8 buffer
QUESTION 3
0.5 points Save Answer
0.5 points Save Answer
B.Arginine has a net positive charge in pH 5.4 buffer
C.Asparagine has a polar basic side chain
D.Alanine is has a net positive charge in pH 6.1 buffer
E. Arginine has a net neutral charge in pH 5.4 buffer
Which of the compounds below is the zwitterion form of alanine?
A. Compound A
B.Compound B
C.Compound C
D.Compound D
QUESTION 4
Glutamic Acid (structure shown below with pKa values), has a pI of?
QUESTION 5
0.5 points Save Answer
0.5 points Save Answer
A. 6.96
B.7.0
C.5.37
D.3.22
E. 5.93
The Fischer projection shown below denotes a ______ amino acid which has the _____ configuration.
A. L, S
B.L, R
C.D, R
D.D, S
QUESTION 6
Which amino acid CANNOT be formed from this synthetic method?
A. Leucine
Glycine
QUESTION 7
0.5 points Save Answer
0.5 points Save Answer
B.C.Proline
D.Valine
E. Alanine
Which amino acid CANNOT be formed from this synthetic method?
A. Valine
B.Leucine
C.Phenylalanine
D.Glycine
E. Alanine
QUESTION 8
Which reactant is needed for the synthesis of alanine using reductive amination?Select the one best answer.
A. BINAP catalyst
B.acetaldehyde
C.enamido acid
QUESTION 9
0.5 points Save Answer
0.5 points Save Answer
D.pyruvic acid
E. Nacetylated enamine
Which reactant is needed for the synthesis of alanine using the Strecker synthesis ?Select the one best answer.
A. BINAP catalyst
B.Nacetylated enamine
C.acetaldehyde
D.pyruvic acid
E. enamido acid
QUESTION 10
Preview Test: Quiz14_Peptides_Chem332
Test InformationDescription Chem 332 Quiz#14-Peptides - Part of Exam 3.
InstructionsTimed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does notappear when previewing this test]
MultipleAttempts
This test allows multiple attempts.
Save All Answers
Which one answer is the abbreviated formula of the peptide shown below?Hint: Identify the amide bonds, then identify each amino acid. ~ Dr. K.
A. lysseraspala
B. serlysalaasp
C.aspalaserlys
D.aspseralalys
QUESTION 10.5 points Save Answer
0.5 points Save Answer
Question Completion Status:
E. aspalasertyr
Which one answer Best describes the structure shown below?
A. tBocPhePro
B.FmocPhePro
C.FmocProPhe
D. tBocProPhe
E. tBocAlaPro
QUESTION 2
Which one answer Best describes the structure shown below?
A. FmocLys
B.Nacyl FmocLys
C.Nacyl tBocArg
D.Nacyl tBocLys
Nacyl FmocArg
QUESTION 3
0.5 points Save Answer
0.5 points Save Answer
E.
Which one answer Best describes the product that forms when the compound below is treated with ammonia?
A. tBocGlu
B.FmocLys
C.FmocArg
D. tBocLys
E. FmocGlu
QUESTION 4
Which one answer describes the Best method to only deprotect the carboxyl group of the compound shown below?
A. HBr (aq)
B.H2 + Pd/Carbon
C.CF3CO2H
D.NH3
E. piperidine
QUESTION 5
0.5 points Save Answer
Which one answer Best describes the N-terminal amino acid in the structure below?
QUESTION 6
0.5 points Save Answer
A. Pro
B.Met
C.Asn
D.Arg
E. Asp
Which one answer Best describes the C-terminal amino acid in the structure below?
A. Pro
B.Asp
QUESTION 7
0.5 points Save Answer
0.5 points Save Answer
C.Arg
D.Met
E. Asn
Which one answer is NOT True about the use of DCC in peptide synthesis? A. DCC is used to protect the carboxyl group of the Cterminal end of the peptide
B.DCC is a coupling agent
C.DCC can be used to add an amino acid to the Cterminal end of a peptide
D.DCC makes the carboxyl group of the amino acid more reactive
E. DCC accelerates the rate of peptide bond formation
QUESTION 8
Which one answer is NOT True about disulfide bridges ? A. Disulfide bonds are a covalent bond between two sulfur atoms
B.Disulfide bridges are covalent bonds that stabilize the protein structure
C.Disulfide bridges contribute to the overall shape of a protein
D.Disulfide bonds result from the reduction of two thiol groups
E. Disulfide bridges can be made between two Cys residues
QUESTION 9
0.5 points Save Answer
Which one answer is NOT True about oxytocin (shown below)?
QUESTION 10
0.5 points Save Answer
A.Oxytocin is linked to "trustinducing" behaviors
B.Gly is the Nterminal amino acid
C.Oxytocin is a nonapeptide
D.Oxytocin has a disulfide bond
E. There is no Phe in the primary structure
Preview Test: Quiz15_ProteinSequencing_Chem332
Test InformationDescription Chem 332 Quiz#15-ProteinSequencing - Part of Exam 3.
InstructionsTimed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires.
Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.[The timer does notappear when previewing this test]
MultipleAttempts
This test allows multiple attempts.
Save All Answers
Which of the compounds below is a reagent used to identify the N-terminal amino acid?Hint: It is listed as PITC in your notes. ~ Dr. K.
A. Compound A
B. Compound B
QUESTION 10.5 points Save Answer
0.5 points Save Answer
Question Completion Status:
C.Compound C
D.Compound D
E. Compound E
Select the one statement that is most True about the peptide below.
A. Edman degradation produces the PTH derivative of Alanine
B. Complete hydrolysis produces three tyrosine residues.
C.Complete hydrolysis will produce only three different AAs that will react with ninhydrin
D.Digestion with Carboxypeptidase A will produce Glycine
E. Complete hydrolysis produces three proline residues
QUESTION 2
Select the one statement that is most True about the peptide below.
QUESTION 3
0.5 points Save Answer
0.5 points Save Answer
A. Complete hydrolysis produces three proline residues
B. Complete hydrolysis produces three tyrosine residues.
C.Digestion with Carboxypeptidase A will produce Glycine
D.Edman degradation produces the PTH derivative of Alanine
E. Complete hydrolysis will produce only three different AAs that will react with ninhydrin
Select the Answer that Best completes the missing terms in the following statement:_______ between a series of amino acids often contribute to the formation of (an) _______, which is part of the overall 3D shape in the _______
of the protein or peptide. Read this carefully. ~ Dr. K.A. Hydrogen bonding ... disulfide bridges ... secondary structure
B. Hydrogen bonding ... α-helix ... tertiary structure
C.London dispersion forces ... β−pleated sheets ... primary structure
D.Hydrogen bonding ... tertiary subunits ... quaternary structure
E. Electrostatic interactions ... β-pleated sheets ... primary sequence
QUESTION 4
The purpose of treating a protein with DTT is to ....A. cleave an amino acid sequence on the Nterminal side of Met
B. separate amino acids in an ion exchange column
C.break disulfide bridges
D.denature by destroying any nonbonding interactions
hydrolyse peptide bonds
QUESTION 5
0.5 points Save Answer
0.5 points Save Answer
E.
The purpose of treating a protein with ammonium sulfate is to ....A. separate amino acids in an ion exchange column
B. denature by destroying any nonbonding interactions
C.cleave an amino acid sequence on the Nterminal side of Met
D.break disulfide bridges
E. hydrolyze peptide bonds
QUESTION 6
Which one most likely CANNOT be used to determine the Nterminal amino acid in a peptide?A. Leucineaminopeptidase
B.Chymotrypsin
C.Dansyl chloride
D.Edman's Reagent
E. Sanger's Reagent
QUESTION 7
0.5 points Save Answer
Which one is NOT an endopeptidase?A. Chymotrypsin
B.Pepsin
C.Carboxypeptidase B
D.Trypsin
E. Asp-N-protease
QUESTION 8
0.5 points Save Answer
Which will elute first from an ion exchange column packed with anionic sulfonated polystyrene using pH=6 buffer solution?Amino acids with basic side chains
QUESTION 9
0.5 points Save Answer
A.
B.Amino acids with acidic side chains
C.Amino acids with nonpolar side chains
D.Amino acids with polar side chains
E. Amino acids with polar neutral side chains
What are these three compounds?
A. 1) Ninhydrin 2) PTH of alanine 3) Sanger's Reagent
B.1) Ninhydrin 2) PTH of alanine 3) Dansyl fluoride
C.1) PITC 2) PTH of glycine 3) Sanger's Reagent
D.1) Ninhydrin 2) PTH of glycine 3) Sanger's Reagent
E. 1) Trypsin 2) Ninhydrin 3) Dansyl fluoride
QUESTION 10
0.5 points Save Answer