Question 1

What is the product of the reaction of 1-propanol with phenyl isocyanate,C6H5N$ \equiv$ C=O?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 2

Which of the following would be the strongest acid?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 3

The IR spectrum of a compound exhibits a broad absorption band at 2500-3000 cm-1 and a sharp band at 1710 cm-1.Which of these compounds could it be?

Accepted Answer

A)  1-Butanol 
B)  Propyl acetate 
C)  Butanoic acid 
D)  Acetyl chloride 
E)  Acetic anhydride 
A)  1-Butanol 
B)  Propyl acetate 
C)  Butanoic acid 
D)  Acetyl chloride 
E)  Acetic anhydride

Question 4

In which of the following sequences are the compounds listed in order of decreasing acidity?

Accepted Answer

A)  CH3COOH > H2O > PhOH > HC$ \equiv$CH > NH3 
B)  PhOH > CH3COOH > H2O > HC$ \equiv$CH > NH3 
C)  CH3COOH > PhOH > H2O > HC$ \equiv$CH > NH3 
D)  H2O > CH3COOH > PhOH > HC$ \equiv$CH > NH3 
E)  PhOH > H2O > CH3COOH > HC$ \equiv$CH > NH3 
A)  CH3COOH > H2O > PhOH > HC$ \equiv$CH > NH3 
B)  PhOH > CH3COOH > H2O > HC$ \equiv$CH > NH3 
C)  CH3COOH > PhOH > H2O > HC$ \equiv$CH > NH3 
D)  H2O > CH3COOH > PhOH > HC$ \equiv$CH > NH3 
E)  PhOH > H2O > CH3COOH > HC$ \equiv$CH > NH3

Question 5

A compound has the molecular formula,C6H12O2.Its IR spectrum shows a strong absorption band near 1740 cm-1;its 1H NMR spectrum consists of two singlets,at  $\delta$1.4 and $\delta$2.0.The most likely structure for this compound is:

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 6

Which of the following compounds is capable of forming a $\delta$-lactone?

Accepted Answer

A)  5-Hydroxypentanoic acid 
B)  Pentanedioic acid 
C)  4-Hydroxypentanoic acid 
D)  3-Hydroxypentanoic acid 
E)  2-Hydroxypentanoic acid 
A)  5-Hydroxypentanoic acid 
B)  Pentanedioic acid 
C)  4-Hydroxypentanoic acid 
D)  3-Hydroxypentanoic acid 
E)  2-Hydroxypentanoic acid

Question 7

Which of the following reactions would constitute a reasonable synthesis of propyl acetate?

Accepted Answer

A) 
  
B) 
  
C) 
  
D)  All of these 
E)  None of these 
A) 
  
B) 
  
C) 
  
D)  All of these 
E)  None of these

Question 8

An acid chloride is prepared from the related carboxylic acid by reaction with which of these?

Accepted Answer

A)  HCl 
B)  Cl2 
C)  SOCl2 
D)  HOCl 
E)  AlCl3 
A)  HCl 
B)  Cl2 
C)  SOCl2 
D)  HOCl 
E)  AlCl3

Question 9

Which of the following acids would have the largest value for pKa?

Accepted Answer

A)  BrCH2CH2CH2COOH 
B)  ClCH2CH2CH2COOH 
C)  Cl2CHCH2CH2COOH 
D)  ICHBrCH2CH2COOH 
E)  BrCCl2CH2CH2COOH 
A)  BrCH2CH2CH2COOH 
B)  ClCH2CH2CH2COOH 
C)  Cl2CHCH2CH2COOH 
D)  ICHBrCH2CH2COOH 
E)  BrCCl2CH2CH2COOH

Question 10

In which of these species are all the carbon-oxygen bonds of equal length?

Accepted Answer

A)  Diethyl carbonate 
B)  Methyl butanoate 
C)  Lithium acetate 
D)  Propionic anhydride 
E)  Pentanoic acid 
A)  Diethyl carbonate 
B)  Methyl butanoate 
C)  Lithium acetate 
D)  Propionic anhydride 
E)  Pentanoic acid

Question 11

Draw the structure for 3-oxo-5-bromohexanoic acid.

Accepted Answer

The answer of Draw the structure for 3-oxo-5-bromohexanoic acid....

Question 12

What is the reactant of the following reaction sequence?

Accepted Answer

A)  BrCH2C6H5 
B)  C6H5CH2COOH 
C)  C6H5CH2OH 
D)  C6H5CH2CH2COOH 
E)  O=C(CH2C6H5)2 
A)  BrCH2C6H5 
B)  C6H5CH2COOH 
C)  C6H5CH2OH 
D)  C6H5CH2CH2COOH 
E)  O=C(CH2C6H5)2

Question 13

Predict the major organic product,P,of the following sequence of reactions:

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 14

Which of the following structures is 3,4-dimethylpentyl chloroformate?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 15

Which compound would be most acidic?

Accepted Answer

A)  Acetic acid 
B)  Ethanol 
C)  Phenol 
D)  Acetone 
E)  Water 
A)  Acetic acid 
B)  Ethanol 
C)  Phenol 
D)  Acetone 
E)  Water

Question 16

What would be the final product of this reaction sequence?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 17

Predict the major organic product of the reaction sequence,

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 18

Which of the following would be the strongest acid?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 19

Ethanoic acid (CH3CO2H)is usually called _______________,from the Latin for "vinegar".

Accepted Answer

Question 20

Which of the following is the best name for the following compound?

Accepted Answer

A)  Isobutyl ethanoate 
B)  Ethyl isopropanoate 
C)  3-methylbutyl ethanoate 
D)  Ethoxy isobutyl ketone 
E)  Ethyl 3-methylbutanoate 
A)  Isobutyl ethanoate 
B)  Ethyl isopropanoate 
C)  3-methylbutyl ethanoate 
D)  Ethoxy isobutyl ketone 
E)  Ethyl 3-methylbutanoate

Exam 17: Aldehydes and Ketones Ii Aldol Reactions

What is the product of the reaction of 1-propanol with phenyl isocyanate,C6H5N ≡ \equiv≡ C=O?

Which of the following would be the strongest acid?

The IR spectrum of a compound exhibits a broad absorption band at 2500-3000 cm-1 and a sharp band at 1710 cm-1.Which of these compounds could it be?

In which of the following sequences are the compounds listed in order of decreasing acidity?

A compound has the molecular formula,C6H12O2.Its IR spectrum shows a strong absorption band near 1740 cm-1;its 1H NMR spectrum consists of two singlets,at δ\deltaδ 1.4 and δ\deltaδ 2.0.The most likely structure for this compound is:

Which of the following compounds is capable of forming a δ\deltaδ -lactone?

Which of the following reactions would constitute a reasonable synthesis of propyl acetate?

An acid chloride is prepared from the related carboxylic acid by reaction with which of these?

Which of the following acids would have the largest value for pKa?

In which of these species are all the carbon-oxygen bonds of equal length?

Draw the structure for 3-oxo-5-bromohexanoic acid.

What is the reactant of the following reaction sequence?

Predict the major organic product,P,of the following sequence of reactions:

Which of the following structures is 3,4-dimethylpentyl chloroformate?

Which compound would be most acidic?

What would be the final product of this reaction sequence?

Predict the major organic product of the reaction sequence,

Which of the following would be the strongest acid?

Ethanoic acid (CH3CO2H)is usually called _______________,from the Latin for "vinegar".

Which of the following is the best name for the following compound?

Carbon Compounds and Chemical Bonds

Representative Carbon Compounds: Functional Groups, Intermolecular Forces, and Infrared Ir Spectroscopy

An Introduction to Organic Reactions: Acids and Bases

Alkanes: Nomenclature, Conformational Analysis, and an Introduction to Synthesis

Stereochemistry: Chiral Molecules

Ionic Reactions - Nucleophilic Substitution and Elimination Reactions of Alkyl Halides

Alkenes and Alkynes I: Properties and Synthesis, Elimination Reactions of Alkyl Halides

Alkenes and Alkynes Ii: Addition Reactions

Nuclear Magnetic Resonance and Mass Spectrometry: Tools for Structure Determination

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds Oxidation-Reduction and Organometallic Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones I Nucleophilic Addition to the Carbonyl Group

Carboxylic Acids and Their Derivatives Nucleophilic Addition - Elimination at the Acyl Carbon

Synthesis and Reactions of Beta-Dicarbonyl Compounds: More Chemistry of Enolate Ions

Amines

Phenols and Aryl Halides: Nucleophilic Aromatic Substitution

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

What is the product of the reaction of 1-propanol with phenyl isocyanate,C₆H₅N $\equiv$ C=O?

The IR spectrum of a compound exhibits a broad absorption band at 2500-3000 cm^-1 and a sharp band at 1710 cm^-1.Which of these compounds could it be?

Which of the following compounds is capable of forming a $\delta$ -lactone?

Which of the following acids would have the largest value for pK_a?

Ethanoic acid (CH₃CO₂H)is usually called _______________,from the Latin for "vinegar".