Chemistry for Life Sciences Practice
Exam
Course Introduction
Chemistry for Life Sciences introduces students to the fundamental concepts of chemistry with an emphasis on applications relevant to biological systems. This course covers atomic and molecular structure, chemical bonding, thermodynamics, kinetics, and the properties of solutions, all within the context of living organisms. Students explore the chemical basis of biological processes such as metabolism, enzyme activity, and cellular signaling. Laboratory sessions provide hands-on experience with techniques and experiments that reinforce theoretical knowledge and highlight the crucial role chemistry plays in the life sciences.
Recommended Textbook Organic Chemistry 3rd Edition by David R. Klein
Available Study Resources on Quizplus
27 Chapters
3751 Verified Questions
3751 Flashcards
Source URL: https://quizplus.com/study-set/3664
Page 2
Chapter 1: A Review of General Chemistry: Electrons, Bonds, and
Molecular Properties
Available Study Resources on Quizplus for this Chatper
191 Verified Questions
191 Flashcards
Source URL: https://quizplus.com/quiz/72919
Sample Questions
Q1) Which element has the electron configuration 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>6</sup> 3s<sup>2</sup> 3p<sup>5</sup>?
A) oxygen
B) fluorine
C) sulfur
D) chlorine
E) bromine
Answer: D
Q2) The electronegativity of elements on the periodic table tends to increase_______.
A) from left to right, top to bottom
B) from right to left, bottom to top
C) from left to right, bottom to top
D) from right to left, top to bottom
E) from upper right to lower left
Answer: C
Q3) Draw the Lewis structure for NH<sub>2</sub>CN including formal charges, if any?
Answer: 11ea894b_ac3f_17fd_bba7_bb70517ce0dc_TB4454_00_TB4454_00
To view all questions and flashcards with answers, click on the resource link above.
Page 3
Chapter 2: Molecular Representations
Available Study Resources on Quizplus for this Chatper
168 Verified Questions
168 Flashcards
Source URL: https://quizplus.com/quiz/72920
Sample Questions
Q1) Draw the resonance hybrid of CH<sub>2</sub>CHCHCHCH<sub>2</sub><sup>+</sup>.
Answer: 11ea894b_ac68_7223_bba7_ffc309680577_TB4454_00_TB4454_00
Q2) Resonance structures have _______ connectivity of atoms and _______ distribution of electrons.
A) different, same
B) same, same
C) different, different D) same, different E) None of these
Answer: D
Q3) Draw a bond-line structure for (CH<sub>3</sub>)<sub>2</sub>N(CH<sub>2</sub>)<sub>3</sub>CH(CH<sub>3</sub>) <sub>2</sub>.
Answer: 11ea894b_ac59_cc85_bba7_53d2cdeda8c3_TB4454_00_TB4454_00
Q4) What is a resonance hybrid?
Answer: A molecule that can be represented by drawing two or more resonance structures is viewed as a resonance hybrid.
Q5) Draw the resonance hybrid of C<sub>6</sub>H<sub>6</sub>.
Answer: 11ea894b_ac68_7222_bba7_55525f20a2a7_TB4454_00_TB4454_00
To view all questions and flashcards with answers, click on the resource link above. Page 4
Chapter 3: Acids and Bases
Available Study Resources on Quizplus for this Chatper
127 Verified Questions
127 Flashcards
Source URL: https://quizplus.com/quiz/72921
Sample Questions
Q1) Identify a conjugate acid.
A) proton acceptor
B) proton donor
C) species remaining after acid is deprotonated
D) species remaining after base is protonated
Answer: D
Q2) What is the strongest base that can be used with water as a solvent?
Answer: hydroxide
Q3) Identify a Brønsted-Lowry base.
A) proton acceptor
B) proton donor
C) species remaining after acid is deprotonated
D) species remaining after base is protonated
Answer: A
Q4) Identify the most sterically hindered alcohol.
A) CH<sub>3</sub>OH
B) CH<sub>3</sub>CH<sub>2</sub>OH
C) (CH<sub>3</sub>)<sub>2</sub>CHOH
D) (CH<sub>3</sub>)<sub>3</sub>COH
Answer: D
Page 5
To view all questions and flashcards with answers, click on the resource link above.
Chapter 4: Alkanes and Cycloalkanes
Available Study Resources on Quizplus for this Chatper
116 Verified Questions
116 Flashcards
Source URL: https://quizplus.com/quiz/72922
Sample Questions
Q1) Draw the lowest energy chair conformer of the most stable isomer of 4-isopropyl-1,2-dimethylcyclohexane.
Q2) Draw a chair conformation of methylcyclohexane.
Q3) Identify the size of the hydrocarbon that is used in asphalt.
A) C<sub>1</sub> - C<sub>4</sub>
B) C<sub>5</sub> - C<sub>12</sub>
C) C<sub>12</sub> - C<sub>18</sub>
D) C<sub>12</sub> and higher
Q4) Identify the size of the hydrocarbon that is used in jet fuel.
A) C<sub>1</sub> - C<sub>4</sub>
B) C<sub>5</sub> - C<sub>12</sub>
C) C<sub>12</sub> - C<sub>18</sub>
D) C<sub>12</sub> and higher
Q5) What is the eclipsing cost of Br and H if the energy difference between the staggered and eclipsed conformations of bromoethane is 13 kJ/mol?
Q6) What is the energy difference between the staggered and eclipsed conformations of 2,2,-dimethylpropane if the eclipsing cost of Me and H is 6 kJ/mol?
Q7) What is the structure of an isopropyl group?
Q8) What is the structure of [2.2.2]bicyclooctane?
To view all questions and flashcards with answers, click on the resource link above. Page 6
Chapter 5: Stereoisomerism
Available Study Resources on Quizplus for this Chatper
141 Verified Questions
141 Flashcards
Source URL: https://quizplus.com/quiz/72923
Sample Questions
Q1) Rank the following from highest to lowest priority according to the Cahn-Ingold-Prelog system.
I. -CH<sub>3</sub> II. -CN III. -CH<sub>2</sub>OH IV. -Br
Q2) What is the percentage of the R enantiomer in a sample of limonene that has a specific rotation of 38, given that the specific rotation of (S)-limonene is 116?
Q3) Rank the following from highest to lowest priority according to the Cahn-Ingold-Prelog system.
I. -CH<sub>2</sub>CH<sub>3</sub><sub> </sub> II. -CHCH<sub>2</sub> III. -CCH IV. -CH<sub>3</sub>
Q4) What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of 20, given that the specific rotation of (R)-carvone is 61?
A) 20%
B) 66.5%
C) 33.5%
D) 61%
Q5) Draw the structure of the compound (R)-4-ethyloctane.
Q6) How many stereoisomers are possible for 2,3-dimethylbutane?
Q7) Draw all the isomers with molecular formula C<sub>4</sub>H<sub>8</sub>.
Page 7
To view all questions and flashcards with answers, click on the resource link above.
Chapter 6: Chemical Reactivity and Mechanisms
Available Study Resources on Quizplus for this Chatper
96 Verified Questions
96 Flashcards
Source URL: https://quizplus.com/quiz/72924
Sample Questions
Q1) What is a transition state?
A) An isolable intermediate in a reaction.
B) The starting materials of the reaction.
C) A local maximum on the energy diagram.
D) A low-energy point between the starting materials and the product.
Q2) Does a reaction with a positive S and a negative H favor reactants or products?
Q3) What is an intermediate?
A) A local maximum on the energy diagram.
B) A point on the reaction pathway that has a discrete minima.
C) A point half-way between the starting materials and products.
D) The highest energy compound on an energy diagram.
Q4) Draw an energy diagram for an endothermic reaction with two steps.
Q5) Predict the sign of G for an exothermic reaction with a decrease in entropy.
A) positive
B) negative
C) no change
D) cannot predict without additional information
Q6) Does a reaction with a positive G favor reactants or products?
Q7) Draw an energy diagram for an exothermic three-step reaction.
To view all questions and flashcards with answers, click on the resource link above. Page 8
Chapter 7: Alkyl Halides: Nucleophilic Substitution and Elimination
Reactions
Available Study Resources on Quizplus for this Chatper
224 Verified Questions
224 Flashcards
Source URL: https://quizplus.com/quiz/72925
Sample Questions
Q1) Which of the following is a strongest nucleophile in a polar protic solvent?
A) F<sup>-</sup>
B) Cl<sup>-</sup>
C) OH<sup>-</sup>
D) SH<sup>-</sup>
E) All of these
Q2) Draw the isomer of 2-bromo-1,1,3-trimethylcyclohexane that would be more reactive in an E2 elimination.
Q3) Which of the following is NOT a nucleophile?
A) OH<sup>-</sup>
B) NH<sub>3</sub>
C) CH<sub>3</sub>OH
D) NH<sub>4</sub><sup>+</sup>
E) All of these
Q4) Which of the following is a primary alkyl halide?
A) (CH<sub>3</sub>)<sub>2</sub>CHCH<sub>2</sub>Cl
B) (CH<sub>3</sub>)<sub>2</sub>CClCH<sub>2</sub>CH<sub>3</sub>
C) (CH<sub>3</sub>)<sub>2</sub>CHCHClCH<sub>3</sub>
D) (CH<sub>3</sub>)<sub>2</sub>CHCH<sub>2</sub>CCl(CH<sub>3</sub>)<sub>2</sub>
Q5) Draw the Z isomer of 3,4-dimethyl-3-hexene. Page 9
To view all questions and flashcards with answers, click on the resource link above.
Page 10
Chapter 8: Addition Reactions of Alkenes
Available Study Resources on Quizplus for this Chatper
153 Verified Questions
153 Flashcards
Source URL: https://quizplus.com/quiz/72926
Sample Questions
Q1) What is a compound that does not have a double bond?
A) allicin (garlic)
B) geraniol (roses)
C) cholesterol
D) limonene (oranges)
E) ammonia
Q2) Which of the catalysts listed are used in the homogenous catalytic hydrogenation of alkenes? I. Ni II. Pt III. Wilkinson's catalyst
A) I
B) II
C) III
D) I and II
E) II and III
Q3) Starting with (2R,3R)-2-chloro-3,4-dimethylpentane, a) draw the expected major product for each step, including regiochemical and stereochemical details when needed. In addition, b) briefly explain the mechanistic rationale for each reaction. i. t-BuOK/t-BuOH, heat
ii. MCPBA/CH<sub>2</sub>Cl<sub>2</sub>
iii. H<sub>3</sub>O<sup>+</sup>
To view all questions and flashcards with answers, click on the resource link above.
Page 11
Chapter 9: Alkynes
Available Study Resources on Quizplus for this Chatper
177 Verified Questions
177 Flashcards
Source URL: https://quizplus.com/quiz/72927
Sample Questions
Q1) What mechanistic intermediate is used to explain the preference for addition of the Br atom, of HBr, to the internal carbon of a terminal alkyne?
A) Formation of an intermediate with partial positive charge on a primary carbon
B) Formation of an intermediate with partial positive charge on a secondary carbon
C) Addition of the H atom to the carbon already with an H.
D) Addition of H, from HBr, to the least hindered carbon.
E) Steric hindrance for the approach of the Br atom to the primary carbon.
Q2) Consider the list of alkyne addition reactions below, and select all those that involve an enol intermediate.
A) Hydroboration/oxidation
B) HgSO<sub>4</sub> catalyzed hydration in dilute H<sub>2</sub>SO<sub>4</sub>
C) Hydrohalogenation
D) Both A and B
E) Both A and C
Q3) What is the expected major organic product from the treatment of 4-methyl-2-pentyne with hydrogen in the presence of Lindlar's catalyst?
Q4) Describe the shape for acetylene.
Q5) What reagent(s) are required to prepare trans-2-heptene from 2-heptyne?
To view all questions and flashcards with answers, click on the resource link above. Page 12
Chapter 10: Radical Reactions
Available Study Resources on Quizplus for this Chatper
102 Verified Questions
102 Flashcards
Source URL: https://quizplus.com/quiz/72928
Sample Questions
Q1) Identify an example of initiation.
A) homolytic cleavage
B) heterolytic cleavage
C) hydrogen abstraction
D) coupling
E) hydrogen addition
Q2) Give the arrows to show the propagation steps for the autooxidation of diethyl ether.
Q3) Propylene (propene) undergoes free radical polymerization with benzoyl peroxide, but does not produce very long chains. Provide a reasonable explanation for this result.
Q4) Propose a synthesis of polyethylene from ethane.
Q5) Upon treatment with NBS and irradiation with UV light, 2-isopropyl-3-methyl-1-butene reacts to produce exactly two monobrominated compounds. Draw the products of this reaction.
Q6) Compound A, C<sub>6</sub>H<sub>12</sub> reacts with HBr/ROOR to give compound B, C<sub>6</sub>H<sub>13</sub>Br. Compound C, C<sub>6</sub>H<sub>14</sub>, reacts with bromine and light to produce compound B, C<sub>6</sub>H<sub>13</sub>Br. Suggest structures for compounds A, B, and C.
To view all questions and flashcards with answers, click on the resource link above. Page 13
Chapter 11: Synthesis
Available Study Resources on Quizplus for this Chatper
106 Verified Questions
106 Flashcards
Source URL: https://quizplus.com/quiz/72929
Sample Questions
Q1) Select the best reagent to convert 1-bromo-1-methylcyclohexane to 1-bromo-2-methylcyclohexane.
A) 1. KOtBu; 2. HBr
B) 1. NaOEt; 2. HBr
C) 1. NaOEt; 2. HBr, ROOR
D) 1. KOtBu; 2. HBr, ROOR
E) Br<sub>2</sub>, h\(\upsilon\)
Q2) What is the minimum number of steps required to convert 2-methylpropane into 1-bromo-2-methyl-2-propanol?
A) 1
B) 2
C) 3
D) 4
E) 5
Q3) Identify the statement that is not part of Green Chemistry.
A) Maximize atom economy.
B) Use safer solvents.
C) Prevent waste.
D) Run all reactions faster with high heat.
E) Use less hazardous reagents.
To view all questions and flashcards with answers, click on the resource link above. Page 14
Chapter 12: Alcohols and Phenols
Available Study Resources on Quizplus for this Chatper
147 Verified Questions
147 Flashcards
Source URL: https://quizplus.com/quiz/72930
Sample Questions
Q1) What is the IUPAC name for the following compound?
HOCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>OH
A) 1,2-butanediol
B) isopropyl alcohol
C) 1-propanol
D) 1,3-propanediol
E) 1,2-ethanediol
Q2) Give the structure for (E)-4,5,5-trimethyl-3-hepten-1-ol.
Q3) Explain why cyclohexanol has a pK<sub>a</sub> of 18 and phenol has a pK<sub>a</sub> of 10. Use structural drawings to explain your reasoning.
Q4) Identify wood alcohol.
A) methanol
B) 2-propanol
C) ethanol
D) 1-butanol
E) 1-propanol
Q5) Provide the structure for 5-chloro-2-propyl-1-heptanol.
Q6) Provide the reagent(s) necessary to convert cyclohexanol to cyclohexane..
Q7) Provide the structure for (2R,3S) -2-bromo-1,3-pentanediol.
Q8) Provide the structure for 6-sec-butyl-7,7-dimethyl-4-decanol.
To view all questions and flashcards with answers, click on the resource link above. Page 15
Chapter 13: Ethers and Epoxides; Thiols and Sulfides
Available Study Resources on Quizplus for this Chatper
139 Verified Questions
139 Flashcards
Source URL: https://quizplus.com/quiz/72931
Sample Questions
Q1) The polyethers that function like crown ethers are called _________.
Q2) Provide the structure for oxetane.
Q3) Which one of the following reactions would produce t-butyl methyl ether in high yield?
A) t-butyl chloride + sodium methoxide
B) t-butanol + methanol in presence of H<sub>2</sub>SO<sub>4</sub> at 140°C
C) t-butyl bromide + bromomethane in the presence of NaOH
D) sodium t-butoxide + bromomethane
Q4) Which one of the following reactions would produce t-butyl methyl ether in high yield?
A) CH<sub>3</sub>ONa + (CH<sub>3</sub>)<sub>3</sub>CBr
B) CH<sub>3</sub>OH + (CH<sub>3</sub>)<sub>3</sub>COH in the presence of H<sub>2</sub>SO<sub>4</sub> at 140°C
C) CH<sub>3</sub>Cl + (CH<sub>3</sub>)<sub>3</sub>CBr in the presence of NaOH
D) (CH<sub>3</sub>)<sub>3</sub>CONa + CH<sub>3</sub>Br
Q5) Provide the structure for tetrahydrofuran.
Q6) Draw all constitutional isomers with molecular formula C<sub>6</sub>H<sub>14</sub>O having an ether functional group and provide the IUPAC name for each isomer.
Q7) Provide the structure for 2-iodo-4-isopropyl-1-methoxybenzene.
To view all questions and flashcards with answers, click on the resource link above. Page 16
Chapter 14: Infrared Spectroscopy and Mass Spectrometry
Available Study Resources on Quizplus for this Chatper
135 Verified Questions
135 Flashcards
Source URL: https://quizplus.com/quiz/72932
Sample Questions
Q1) Provide the structure of the major fragment that results when the molecular ion of CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>OH undergoes fragmentation via alpha cleavage.
Q2) High-resolution mass spectrometry is used to determine the _____ of a compound.
A) degree of unsaturation
B) molecular formula
C) molecular weight
D) B and C
E) none of these
Q3) Calculate the degree of unsaturation for C<sub>9</sub>H<sub>11</sub>N.
A) 4
B) 6
C) 2
D) 5
E) 3
Q4) Provide a molecular formula that is consistent with the following mass spectral data. M<sup>+</sup> <sup> </sup>at m/z = 167, relative height = 50.0% (M+1)<sup>+</sup> <sup> </sup>at m/z = 168, relative height = 4.4%
Q5) Warmer objects emit more __________ radiation.
To view all questions and flashcards with answers, click on the resource link above. Page 17
Chapter 15: Nuclear Magnetic Resonance Spectroscopy
Available Study Resources on Quizplus for this Chatper
140 Verified Questions
140 Flashcards
Source URL: https://quizplus.com/quiz/72933
Sample Questions
Q1) In an NMR spectrometer, the receiver coil records a complex signal, called a ________________, which is converted into a spectrum via a mathematical technique called a ____________________.
Q2) Draw a structure, with a formula of C<sub>5</sub>H<sub>13</sub>N, which has an integration of 9H, 3H, 1H.
Q3) Propose a structure for a compound, with molecular formula C<sub>5</sub>H<sub>12</sub>O<sub>2</sub>, that fits the following spectroscopic data:
IR: 1200 cm<sup>-1</sup>
<sup>1</sup>H NMR: 1.4 \(\delta\) (singlet, 6H), 3.2 \(\delta\) (singlet, 6H) <sup>13</sup>C NMR: 28, 45, 100
Q4) Which of the following is true about the shape (multiplicity) of the signal in a <sup>1</sup>H NMR spectrum?
A) it indicates the number of neighboring protons
B) it indicates the electronic environment of neighboring protons
C) it indicates the number of different protons
D) it indicates the electronic environment of absorbing protons
E) it indicates the number of protons in the signal
Q5) NMR is an abbreviation for ____________ ____________ __________.
Q6) List the most common nuclei that are used in NMR.
To view all questions and flashcards with answers, click on the resource link above. Page 18
Chapter 16: Conjugated Pi Systems and Pericyclic Reactions
Available Study Resources on Quizplus for this Chatper
140 Verified Questions
140 Flashcards
Source URL: https://quizplus.com/quiz/72934
Sample Questions
Q1) How many electrons does the HOMO of 2,4-hexadiene have in its ground state?
A) 1
B) 2
C) 3
D) 4
E) 0
Q2) Dienes with adjacent bonds are classified as ______.
A) isolated B) cumulated C) skipped D) conjugated E) none of these
Q3) The polymerization of isoprene to produce synthetic rubber is a special case of ____- addition.
Q4) Which one of the following dienes is least stable?
A) CH<sub>3</sub>CH=CHCH=CHCH<sub>3</sub>
B) CH<sub>3</sub>CH=CHCH<sub>2</sub>CH=CH<sub>2</sub>
C) CH<sub>2</sub>=CHCH<sub>2</sub>CH<sub>2</sub>CH=CH<sub>2</sub>
D) CH<sub>2</sub>=CHCH(CH<sub>3</sub>)CH=CH<sub>2</sub>
E) CH<sub>3</sub>CH=C=CHCH<sub>2</sub>CH<sub>3</sub>
To view all questions and flashcards with answers, click on the resource link above. Page 19
Chapter 17: Aromatic Compounds
Available Study Resources on Quizplus for this Chatper
118 Verified Questions
118 Flashcards
Source URL: https://quizplus.com/quiz/72935
Sample Questions
Q1) The difference between the amount of heat actually released upon the hydrogenation of benzene and that calculated for the hydrogenation of an imaginary cyclohexatriene is called the ____ of benzene.
Q2) The carbon-carbon bonds in benzene are _________.
A) of equal length and are shorter than the double bond
B) of equal length and are midway between a single bond and a double bond
C) of equal length and are longer than the single bond
D) of unequal length and alternate as single and double bonds
E) none of these
Q3) For a compound to be aromatic, it must have a planar cyclic conjugated \(\pi\) system along with an _____ number of electron pairs.
A) even
B) odd
C) either even or odd
D) none of these
Q4) What is the structure for styrene?
Q5) For disubstituted benzene derivatives, the descriptors ortho, meta, para are used when the parent is usually a ________.
Q6) What is the structure for p-aminobenzoic acid (PABA)?
Page 20
To view all questions and flashcards with answers, click on the resource link above.
Chapter 18: Aromatic Substitution Reactions
Available Study Resources on Quizplus for this Chatper
122 Verified Questions
122 Flashcards
Source URL: https://quizplus.com/quiz/72936
Sample Questions
Q1) Which of the following halides cannot be used for a Friedel-Crafts alkylation reaction?
A) bromobenzene
B) vinylchloride
C) 2-chloropropane
D) chloroethane
E) both A and B
Q2) Identify the rate-determining step in the electrophilic aromatic substitution of benzene.
A) Formation of an electrophile
B) Formation of a sigma complex.
C) Loss of a proton from the sigma complex.
D) Addition of an electrophile & loss of a proton
E) None of these
Q3) Provide a stepwise curved arrow mechanism for the chlorination of benzene in the presence of FeCl<sub>3</sub>.
Q4) Provide the reagents necessary to prepare 1-bromo-3-isobutylbenzene from benzene.
Q5) A nitro group ___________ the benzene ring to make it __________ reactive than benzene.
21
To view all questions and flashcards with answers, click on the resource link above.
Chapter 19: Aldehydes and Ketones
Available Study Resources on Quizplus for this Chatper
169 Verified Questions
169 Flashcards
Source URL: https://quizplus.com/quiz/72937
Sample Questions
Q1) A compound with two OR groups attached to the same carbon is known as ______.
A) an acetal
B) a hemiacetal
C) a hydrate
D) a vicinal hydrate
E) none of these
Q2) Suggest a stepwise synthesis for 1-pentanol from butanal.
Q3) The <sup>1</sup>H NMR spectrum of a compound with formula C<sub>7</sub>H<sub>14</sub>O shows only two signals. Which one of the following is a possible structure for this compound?
A) 2-heptanone
B) 3-heptanone
C) 2,4-dimethyl-3-pentanone
D) 2,2-dimethyl-3-pentanone
E) Two of the above
Q4) Provide the structure for (S)-3-chlorocyclohexanone.
Q5) Provide the structure for 4-methylbenzaldehyde.
Q6) Suggest a stepwise synthesis for 5-methyl-2-hexanone from 3-methyl-1-bromobutane.
Q7) Suggest a stepwise synthesis for 3-phenylpropanal from benzyl alcohol.
To view all questions and flashcards with answers, click on the resource link above. Page 22
Chapter 20: Carboxylic Acids and Their Derivatives
Available Study Resources on Quizplus for this Chatper
144 Verified Questions
144 Flashcards
Source URL: https://quizplus.com/quiz/72938
Sample Questions
Q1) Methanoic acid is commonly known as ________.
Q2) Provide the reagents necessary to convert 4,5-dimethyl-1-hexanol into N-cyclopentyl-4,5-dimethylhexanamide.
Q3) Provide the structure for benzoic ethanoic anhydride.
Q4) Give the IUPAC name for oxalic acid.
A) ethanedioic acid
B) propanedioic acid
C) butanedioic acid
D) pentanedioic acid
E) benzoic acid
Q5) Which one of the following compounds has the highest boiling point?
A) butanoic acid
B) 1-butanol
C) 2-butanone
D) methoxyethane
E) butanal
Q6) Provide the structure for N-methylcyclohexanecarboxamide.
Q7) Provide the structure for acetic formic anhydride.
Page 23
Q8) Provide the structure for 5-chloro-3-isopropyloctanoic acid.
Q9) Provide the structure for cyclopentanecarbonyl chloride.
To view all questions and flashcards with answers, click on the resource link above.
Page 24
Chapter 21: Alpha Carbon Chemistry: Enols and Enolates
Available Study Resources on Quizplus for this Chatper
147 Verified Questions
147 Flashcards
Source URL: https://quizplus.com/quiz/72939
Sample Questions
Q1) Give the name of the reaction in which a carboxylic acid can undergo alpha halogenation.
Q2) How many gamma hydrogens are in 2-pentanone?
A) 1
B) 2
C) 3
D) 4
E) 5
Q3) An intermolecular Claisen condensation is called a _____________.
Q4) Provide the structure of the enolate when acetophenone is treated with a strong base.
Q5) Which one of the following compounds does not undergo an aldol addition reaction in the presence of aqueous sodium hydroxide?
A) butanal
B) 2-methylbutanal
C) 3-methylpentanal
D) 2,2-dimethylbutanal
E) pentanal
Q6) In an aldol mechanism, the ___________ attacks the aldehyde.
Q7) Give the organic by-product in a haloform reaction.
To view all questions and flashcards with answers, click on the resource link above. Page 25
Chapter 22: Amines
Available Study Resources on Quizplus for this Chatper
112 Verified Questions
112 Flashcards
Source URL: https://quizplus.com/quiz/72940
Sample Questions
Q1) Predict the major product when p-toluidine reacts with sodium nitrite and hydrochloric acid at < 5°C followed by o-ethylphenol?
2
Q2) The ________ reaction is used to prepare primary amines by using potassium phthalimide. This reaction proceeds by a ________ mechanism.
Q3) Which one of the following is the best synthesis for 3,5-dibromotoluene?
A) toluene, Br<sub>2</sub>/FeBr<sub>3</sub> excess
B) 1. p-toluidine, Br<sub>2</sub>/ FeBr<sub>3</sub>;
2) NaNO<sub>2</sub>/HCl, < 5°C
3) H<sub>3</sub>PO<sub>2</sub>
C) 1. Toluene, HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub>
2) NH<sub>3</sub>
3) NaNO<sub>2</sub>/HCl, < 5°C
4) CuBr
D) m-dibromobenzene, CH<sub>3</sub>Cl/AlCl<sub>3</sub>
E) 1. m-bromotoluene, HNO<sub>3</sub>, H<sub>2</sub>SO<sub>4</sub>
2) Fe/HCl
3) NaNO<sub>2</sub>/HCl, < 5°C
4) CuBr
To view all questions and flashcards with answers, click on the resource link above.
Page 26
Chapter 23: Introduction to Organometallic Compounds
Available Study Resources on Quizplus for this Chatper
118 Verified Questions
118 Flashcards
Source URL: https://quizplus.com/quiz/72941
Sample Questions
Q1) Which of the following electrophiles are commonly used with Gilman reagents to form C-C bonds? Select all that apply.
A)acid chlorides
B) , -unsaturated ketones
C)esters
D)alkyl halides
E)amides
Q2) Which of the following is a Simmons-Smith cyclopropanation?
A) R-X + Zn
B) R<sub>2</sub>C=CR<sub>2 </sub> + CH<sub>2</sub>I<sub>2</sub> + Zn-Cu
C) CHCl<sub>3</sub> + NaOH
D) R<sub>2</sub>C=CHI + (CH<sub>3</sub>)<sub>2</sub>CuLi
Q3) Which of the following statements is(are) true regarding the preparation of Gilman reagents?
A) Gilman reagents can be made from alkyl halides (R-X).
B) Gilman reagents can be made from aryl halides (Ar-X).
C) Gilman reagents can be made from organolithium reagents.
D) Lithium halides are byproducts of the reaction to make Gilman reagents.
E) all of the above
Q4) Each intermediate in alkene metathesis is formed by _____ cycloaddition
To view all questions and flashcards with answers, click on the resource link above. Page 27
Chapter 24: Carbohydrates
Available Study Resources on Quizplus for this Chatper
144 Verified Questions
144 Flashcards
Source URL: https://quizplus.com/quiz/72942
Sample Questions
Q1) Identify the monomer in starch.
A)(\(\alpha\)-D-glucose)
B)(\(\beta\)-D-glucose)
C)(\(\alpha\)-D-galactose)
D)(\(\beta\)-D-fructose)
E)maltose
Q2) Which one of the following heterocyclic amines is not a base in DNA?
A) uracil
B) thymine
C) cytosine
D) adenine
E) guanine
Q3) When D-ribose is treated with nitric acid, it forms
A) a racemic mixture of aldonic acids
B) a meso aldaric acid
C) an optically active aldaric acid
D) an optically active aldonic acid
E) a meso aldonic acid
Q4) Identify the monosaccharide(s) in sucrose.
Q5) Draw the Fisher projection for D-galactose.
Page 28
To view all questions and flashcards with answers, click on the resource link above.
Chapter 25: Amino Acids, Peptides, and Proteins
Available Study Resources on Quizplus for this Chatper
133 Verified Questions
133 Flashcards
Source URL: https://quizplus.com/quiz/72943
Sample Questions
Q1) Provide the structure of the predominant form of alanine at pH 2?
Q2) Which of the following is true about the amino acids with isoelectric point around pH 10?
A) The side chain must be acidic.
B) The side chain must be basic.
C) The side chain must be polar.
D) The side chain must be non polar.
E) none of these
Q3) Provide the reagents necessary to prepare phenylalanine using a Strecker synthesis.
Q4) When two amino acids are connected to each other, they form ____________.
A) a tripeptide
B) a protein
C) a polypeptide
D) a tetrapeptide
E) a dipeptide
Q5) Draw the Fischer projection for L-aspartic acid and assign the configuration (R/S) at the chirality center.
Q6) How will you prepare glycine staring with ethanol and using a Hell-Volhard-Zelinski reaction?
Page 29
To view all questions and flashcards with answers, click on the resource link above.
Chapter 26: Lipids
Available Study Resources on Quizplus for this Chatper
123 Verified Questions
123 Flashcards
Source URL: https://quizplus.com/quiz/72944
Sample Questions
Q1) Which one of the following is a precursor for the synthesis of prostaglandins?
A) arachidonic acid
B) linoleic acid
C) cholesterol
D) linolenic acid
E) biodiesel
Q2) Provide the structure of an optically active triglyceride that produced two myristic acid residues and an oleic acid residue when heated in the presence of an acid.
Q3) Sheep have ___________________ on their wool.
A) oil
B) lanolin
C) spermaceti
D) carnauba wax
E) beeswax
Q4) ______lipids do not undergo hydrolysis in the presence of aqueous acid or base.
Q5) Predict the product when testosterone is treated with PCC.
Q6) Explain why fatty acids cannot form a bilayer.
Q7) ______lipids undergo hydrolysis in the presence of aqueous acid or base.
To view all questions and flashcards with answers, click on the resource link above. Page 30
Q8) Male sex hormones are called ______ and female sex hormones are called ____.
Chapter 27: Synthetic Polymers
Available Study Resources on Quizplus for this Chatper
119 Verified Questions
119 Flashcards
Source URL: https://quizplus.com/quiz/72945
Sample Questions
Q1) Which of the following polymers are classified as elastomers?
A) spandex
B) natural rubber
C) HDPE
D) A and B
E) all of these
Q2) A syndiotactic polymer has a _______ configuration.
A) random
B) alternating
C) same
D) block
E) graft
Q3) ________ regions in polymers make the polymer flexible.
A) amorphous
B) cross linked
C) crystalline
D) B and C
E) none of these
Q4) Draw a possible segment of syndiotactic polyacrylonitrile.
Q5) Draw a possible segment of syndiotactic poly(vinyl fluoride).
To view all questions and flashcards with answers, click on the resource link above. Page 31