Question 1

Identify "X" and "Y" in the given reaction. ​

Accepted Answer

A)  X is LiAlH4/THF, and Y is H2/Rh. 
B)  X is H2/Pt, and Y is LiAlH4. 
C)  X is H2/Rh, and Y is LiAlH4/THF. 
D)  X is H2, and Y is NaBH4. 
A)  X is LiAlH4/THF, and Y is H2/Rh. 
B)  X is H2/Pt, and Y is LiAlH4. 
C)  X is H2/Rh, and Y is LiAlH4/THF. 
D)  X is H2, and Y is NaBH4.

Question 2

What is the major organic product obtained from the following reaction?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 3

What is the correct assignment of the names of the following functional groups?

Accepted Answer

A)  1 = enol; 2 = hydrate; 3 = acetal; 4 = hemiacetal 
B)  1 = acetal; 2 = hydrate; 3 = enol; 4 = hemiacetal 
C)  1 = hydrate; 2 = hemiacetal; 3 = acetal; 4 = enol 
D)  1 = enol; 2 = hydrate; 3 = hemiacetal; 4 = enol 
A)  1 = enol; 2 = hydrate; 3 = acetal; 4 = hemiacetal 
B)  1 = acetal; 2 = hydrate; 3 = enol; 4 = hemiacetal 
C)  1 = hydrate; 2 = hemiacetal; 3 = acetal; 4 = enol 
D)  1 = enol; 2 = hydrate; 3 = hemiacetal; 4 = enol

Question 4

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 5

What is the major organic product obtained from the following reaction?

Accepted Answer

The answer of What is the major organic product obtained...

Question 6

3-hydroxybutanal can exist in equilibrium as a cyclic hemiacetal.

Accepted Answer

A) True 
 B)False

Question 7

The correct name for the following compound is 3-oxoheptanal.

Accepted Answer

A) True 
 B)False

Question 8

What is the correct assignment of the names of the following functional groups?

Accepted Answer

A)  1 = imine; 2 = amine; 3 = hydrazone; 4 = oxime 
B)  1 = hydrazone; 2 = amine; 3 = imine; 4 = oxime 
C)  1 = oxime; 2 = imine; 3 = amine; 4 = hydrazone 
D)  1 = imine; 2 = hydrazone; 3 = oxime; 4 = amine 
A)  1 = imine; 2 = amine; 3 = hydrazone; 4 = oxime 
B)  1 = hydrazone; 2 = amine; 3 = imine; 4 = oxime 
C)  1 = oxime; 2 = imine; 3 = amine; 4 = hydrazone 
D)  1 = imine; 2 = hydrazone; 3 = oxime; 4 = amine

Question 9

What is the major organic product obtained from the following reaction?

Accepted Answer

A)  (
E) -3-methyl-2-pentene 
B)  (Z)-3-methyl-2-pentene 
C)  2-methyl-2-pentene 
D)  4-methyl-1-pentene 
A)  (
E) -3-methyl-2-pentene 
B)  (Z)-3-methyl-2-pentene 
C)  2-methyl-2-pentene 
D)  4-methyl-1-pentene

Question 10

Which combination(s) of alkyl bromide and carbonyl compound can be used to prepare the following product by addition of the Grignard reagent derived from the alkyl bromide to the carbonyl compound?

Accepted Answer

A)  only 1 
B)  only 3 
C)  only 1 and 3 
D)  only 2 and 4 
A)  only 1 
B)  only 3 
C)  only 1 and 3 
D)  only 2 and 4

Question 11

What is the major organic product obtained from the following reaction?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 12

What is the major organic product obtained from the following reaction?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 13

Identify the solvent(s) used in 1H-NMR spectroscopy. ​

Accepted Answer

A)  Only I and II 
B)  Only II and III 
C)  I, III, and IV 
D)  I, II, and III 
A)  Only I and II 
B)  Only II and III 
C)  I, III, and IV 
D)  I, II, and III

Question 14

What is the correct assignment of the names of the following functional groups?

Accepted Answer

A)  1 = imine; 2 = amine; 3 = hydrazone; 4 = oxime 
B)  1 = hydrazone; 2 = amine; 3 = imine; 4 = oxime 
C)  1 = oxime; 2 = imine; 3 = amine; 4 = hydrazone 
D)  1 = imine; 2 = hydrazone; 3 = oxime; 4 = amine 
A)  1 = imine; 2 = amine; 3 = hydrazone; 4 = oxime 
B)  1 = hydrazone; 2 = amine; 3 = imine; 4 = oxime 
C)  1 = oxime; 2 = imine; 3 = amine; 4 = hydrazone 
D)  1 = imine; 2 = hydrazone; 3 = oxime; 4 = amine

Question 15

Which of the following is not true about the Wittig reaction?

Accepted Answer

A)  triphenylphosphine reacts with 2° alkyl bromides by an SN2 reaction to give an alkyltriphenylphosphonium bromide 
B)  alkyltriphenylphosphonium bromides are deprotonated by strong bases to give a phosphonium ylide 
C)  phosphonium ylids are nucleophilic 
D)  the product of the Wittig reaction is an alkyne 
A)  triphenylphosphine reacts with 2° alkyl bromides by an SN2 reaction to give an alkyltriphenylphosphonium bromide 
B)  alkyltriphenylphosphonium bromides are deprotonated by strong bases to give a phosphonium ylide 
C)  phosphonium ylids are nucleophilic 
D)  the product of the Wittig reaction is an alkyne

Question 16

Consider the reaction below to answer the following question(s). Use letters where appropriate to answer the questions.
​  
-The nucleophile in this reaction is _____.

Accepted Answer

The answer of Consider the reaction below to answer the...

Question 17

Consider the following reaction.   The mechanism for this reaction is shown below.

Accepted Answer

A) True 
 B)False

Question 18

The reduction of aldehydes by LAH is carried out in aprotic solvents such as THF because _____.

Accepted Answer

A)  LAH reacts vigorously with aprotic solvents to release hydrogen gas 
B)  LAH reacts vigorously with protic solvents to release hydrogen gas 
C)  LAH reacts with aprotic solvents to form lithium hydroxide 
D)  LAH reduces aldehydes to dienes only in aprotic solvents 
A)  LAH reacts vigorously with aprotic solvents to release hydrogen gas 
B)  LAH reacts vigorously with protic solvents to release hydrogen gas 
C)  LAH reacts with aprotic solvents to form lithium hydroxide 
D)  LAH reduces aldehydes to dienes only in aprotic solvents

Question 19

What is the relationship between the following two structures?

Accepted Answer

A)  tautomers 
B)  constitutional isomers, but not tautomers 
C)  resonance structures 
D)  stereoisomers 
A)  tautomers 
B)  constitutional isomers, but not tautomers 
C)  resonance structures 
D)  stereoisomers

Question 20

What is the major organic product obtained from the following sequence of reactions?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Exam 16: Aldehydes and Ketones

Identify "X" and "Y" in the given reaction. ​

What is the major organic product obtained from the following reaction?

What is the correct assignment of the names of the following functional groups?

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

3-hydroxybutanal can exist in equilibrium as a cyclic hemiacetal.

The correct name for the following compound is 3-oxoheptanal.

What is the correct assignment of the names of the following functional groups?

What is the major organic product obtained from the following reaction?

Which combination(s) of alkyl bromide and carbonyl compound can be used to prepare the following product by addition of the Grignard reagent derived from the alkyl bromide to the carbonyl compound?

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

Identify the solvent(s) used in 1H-NMR spectroscopy. ​

What is the correct assignment of the names of the following functional groups?

Which of the following is not true about the Wittig reaction?

Consider the reaction below to answer the following question(s). Use letters where appropriate to answer the questions. ​ -The nucleophile in this reaction is _____.

Consider the following reaction. The mechanism for this reaction is shown below.

The reduction of aldehydes by LAH is carried out in aprotic solvents such as THF because _____.

What is the relationship between the following two structures?

What is the major organic product obtained from the following sequence of reactions?

Covalent Bonding and Shapes of Molecules

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

Identify "X" and "Y" in the given reaction.

Identify the solvent(s) used in ¹H-NMR spectroscopy.

Consider the reaction below to answer the following question(s). Use letters where appropriate to answer the questions. -The nucleophile in this reaction is _____.