Question 1

The IR absorption due to the stretching of which of these carbon-hydrogen bonds occurs at the highest frequency?

Accepted Answer

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

Question 2

Draw all tertiary amine isomers of C6H15N.

Accepted Answer

Question 3

Which compound is a secondary amine?

Accepted Answer

A) CH3CH2CH2NH2 
B)    
C)    
D)    
E)    
A) CH3CH2CH2NH2 
B)    
C)    
D)    
E)

Question 4

All of the carbon-carbon bonds in ___ are equal to one and one-half bonds and have a bond length in between that of a single bond and a double bond with all of the bond angles at ___.

Accepted Answer

The answer of All of the carbon-carbon bonds in ___...

Question 5

What functional group(s)is/are present in the following compound?

Accepted Answer

A) 1o alcohol and ketone 
B) carboxylic acid 
C) ester 
D) 1o alcohol and aldehyde 
E) alcohol 
A) 1o alcohol and ketone 
B) carboxylic acid 
C) ester 
D) 1o alcohol and aldehyde 
E) alcohol

Question 6

The IR stretching frequency occurs at the lowest frequency for which of these bonds?

Accepted Answer

A) C-H 
B) C-O 
C) C-Br 
D) C-N 
E) C-F 
A) C-H 
B) C-O 
C) C-Br 
D) C-N 
E) C-F

Question 7

The compound shown below is a substance called capsaicin,found in varying concentrations in several varieties of hot peppers,and responsible for their respective degrees of "heat." Which functional groups are present in the molecule of capsaicin?

Accepted Answer

A) Alkene,ketone,amine,alcohol,ester 
B) Alkene,ketone,alcohol,ether 
C) Alkene,amine,phenol,ether 
D) Ether,phenol,alkene,amide 
E) Ester,phenol,alkene,amide 
A) Alkene,ketone,amine,alcohol,ester 
B) Alkene,ketone,alcohol,ether 
C) Alkene,amine,phenol,ether 
D) Ether,phenol,alkene,amide 
E) Ester,phenol,alkene,amide

Question 8

Of the following compounds,the one with the highest boiling point is:

Accepted Answer

A) CH3CH3 
B) CH3CH2Cl 
C)    
D) CH3CH2OH 
E) CH3CH2OCH2CH3 
A) CH3CH3 
B) CH3CH2Cl 
C)    
D) CH3CH2OH 
E) CH3CH2OCH2CH3

Question 9

Hydrogen bonding will broaden the O-H absorption band in an infrared spectrum.

Accepted Answer

A) True 
 B)False

Question 10

The compound below is an adrenocortical hormone called cortisone.Which functional group is not present in cortisone?

Accepted Answer

A) 1S1U1P1$\circ$S1S1P0 alcohol 
B) Ketone 
C) 3S1U1P1$\circ$S1S1P0 alcohol 
D) Carboxylic acid 
E) Alkene 
A) 1S1U1P1$\circ$S1S1P0 alcohol 
B) Ketone 
C) 3S1U1P1$\circ$S1S1P0 alcohol 
D) Carboxylic acid 
E) Alkene

Question 11

Which compound can be classified as an ester as well as a ketone?

Accepted Answer

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

Question 12

For the functional group(s)on the following molecule what characteristic IR absorption(s)would be expected (ignoring C-H absorptions)?

Accepted Answer

A) peaks around 1740 and 1650 cm-1 
B) a strong broad peak over 3600 to 2500 cm-1 
C) peaks around 1650 and 3300 cm-1 
D) a peak around 1740 cm-1 
E) None of these choices. 
A) peaks around 1740 and 1650 cm-1 
B) a strong broad peak over 3600 to 2500 cm-1 
C) peaks around 1650 and 3300 cm-1 
D) a peak around 1740 cm-1 
E) None of these choices.

Question 13

The molecule N2 does not show an absorption in an IR spectrum because the dipole moment of the molecule does not change with the absorption of IR energy.

Accepted Answer

A) True 
 B)False

Question 14

Draw all isomers of C6H12O that are aldehydes.

Accepted Answer

Question 15

Of the following common organic solvents which one is predicted to have the smallest dipole moment?

Accepted Answer

A) Chloroform,CHCl3 
B) Acetone,(CH3)2CO 
C) Dimethylsulfoxide,(CH3)2SO 
D) Acetonitrile,CH3CN 
E) Methanol,CH3OH 
A) Chloroform,CHCl3 
B) Acetone,(CH3)2CO 
C) Dimethylsulfoxide,(CH3)2SO 
D) Acetonitrile,CH3CN 
E) Methanol,CH3OH

Question 16

Which compound would you expect to have the highest boiling point?

Accepted Answer

A) ethane 
B) ethene 
C) ethyne 
D) bromoethane 
E) methane 
A) ethane 
B) ethene 
C) ethyne 
D) bromoethane 
E) methane

Question 17

Which compound listed below is a secondary alcohol?

Accepted Answer

A)    
B)    
C)    
D) CH3CH2CH2CH2OH 
E) CH3CH2CH2OCH3 
A)    
B)    
C)    
D) CH3CH2CH2CH2OH 
E) CH3CH2CH2OCH3

Question 18

What functional group(s)is/are present in the following compound?

Accepted Answer

A) alkyne and 2o alcohol 
B) alkyne and 1o alcohol 
C) 2o alcohol and alkene 
D) nitrile and 1o alcohol 
E) alkene and 2o alcohol 
A) alkyne and 2o alcohol 
B) alkyne and 1o alcohol 
C) 2o alcohol and alkene 
D) nitrile and 1o alcohol 
E) alkene and 2o alcohol

Question 19

An IR spectrum has significant peaks at 2200 and 3300 cm-1.What functional group is present in the molecule?

Accepted Answer

Question 20

The IR spectrum of which type of compound generally exhibits evidence of hydrogen bonding?

Accepted Answer

A) Aldehyde 
B) Carboxylic acid 
C) Alkene 
D) Ester 
E) Ketone 
A) Aldehyde 
B) Carboxylic acid 
C) Alkene 
D) Ester 
E) Ketone

Exam 2: Families of Carbon

The IR absorption due to the stretching of which of these carbon-hydrogen bonds occurs at the highest frequency?

Draw all tertiary amine isomers of C6H15N.

Which compound is a secondary amine?

All of the carbon-carbon bonds in ___ are equal to one and one-half bonds and have a bond length in between that of a single bond and a double bond with all of the bond angles at ___.

What functional group(s)is/are present in the following compound?

The IR stretching frequency occurs at the lowest frequency for which of these bonds?

The compound shown below is a substance called capsaicin,found in varying concentrations in several varieties of hot peppers,and responsible for their respective degrees of "heat." Which functional groups are present in the molecule of capsaicin?

Of the following compounds,the one with the highest boiling point is:

Hydrogen bonding will broaden the O-H absorption band in an infrared spectrum.

The compound below is an adrenocortical hormone called cortisone.Which functional group is not present in cortisone?

Which compound can be classified as an ester as well as a ketone?

For the functional group(s)on the following molecule what characteristic IR absorption(s)would be expected (ignoring C-H absorptions)?

The molecule N2 does not show an absorption in an IR spectrum because the dipole moment of the molecule does not change with the absorption of IR energy.

Draw all isomers of C6H12O that are aldehydes.

Of the following common organic solvents which one is predicted to have the smallest dipole moment?

Which compound would you expect to have the highest boiling point?

Which compound listed below is a secondary alcohol?

What functional group(s)is/are present in the following compound?

An IR spectrum has significant peaks at 2200 and 3300 cm-1.What functional group is present in the molecule?

The IR spectrum of which type of compound generally exhibits evidence of hydrogen bonding?

The Basics

Acids and Bases

Nomenclature and Conformations of Alkanes and Cycloalkanes

Stereochemistry

Nucleophilic Reactions

Alkenes and Alkynes I

Alkenes and Alkynes II

Nuclear Magnetic Resonance and Mass Spectrometry

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Reactions at the Α Carbon of Carbonyl Compounds

Condensation and Conjugate Addition Reactions of Carbonyl Compounds

Amines

Transition Metal Complexes

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

Draw all tertiary amine isomers of C₆H₁₅N.

All of the carbon-carbon bonds in _ are equal to one and one-half bonds and have a bond length in between that of a single bond and a double bond with all of the bond angles at _.

The molecule N₂ does not show an absorption in an IR spectrum because the dipole moment of the molecule does not change with the absorption of IR energy.

Draw all isomers of C₆H₁₂O that are aldehydes.

An IR spectrum has significant peaks at 2200 and 3300 cm^-¹.What functional group is present in the molecule?