Question 1

IR evidence for the presence of the C=C would be most difficult to detect in the case of which of these alkenes?

Accepted Answer

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

Question 2

Which functional group is not contained in prostaglandin E1?   Prostaglandin E1

Accepted Answer

A) Ketone 
B) 2S1U1P1$\circ$S1S1P0 alcohol 
C) 3S1U1P1$\circ$S1S1P0 alcohol 
D) Carboxylic acid 
E) Alkene 
A) Ketone 
B) 2S1U1P1$\circ$S1S1P0 alcohol 
C) 3S1U1P1$\circ$S1S1P0 alcohol 
D) Carboxylic acid 
E) Alkene

Question 3

Which molecule has a zero dipole moment?

Accepted Answer

A) CO2 
B) CH4 
C) CH3CH3 
D)    
E) All of these choices. 
A) CO2 
B) CH4 
C) CH3CH3 
D)    
E) All of these choices.

Question 4

Which compound(s)contain(s)tertiary carbon atom(s)?

Accepted Answer

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

Question 5

A split peak for the IR absorption due to bond stretching is observed for the carbonyl group in which of these compounds?

Accepted Answer

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

Question 6

Draw all isomers of C3H8O and classify each according to functional group.

Accepted Answer

Question 7

For the following reaction sequence (it is not necessary to understand the chemistry)what significant change(s)would be expected by IR (ignoring C-H absorptions)?

Accepted Answer

A) A peak around 2250 cm-1 would disappear and nothing new would appear. 
B) A peak around 1720 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
C) A peak around 2250 cm-1 would disappear and a new peak around 1720 cm-1 would appear. 
D) A peak around 2250 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
E) No change would be observed. 
A) A peak around 2250 cm-1 would disappear and nothing new would appear. 
B) A peak around 1720 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
C) A peak around 2250 cm-1 would disappear and a new peak around 1720 cm-1 would appear. 
D) A peak around 2250 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
E) No change would be observed.

Question 8

Which compound is an ester?

Accepted Answer

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

Question 9

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 1710 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 1710 cm-1 
E) None of these choices. 
A) peaks around 1710 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 1710 cm-1 
E) None of these choices.

Question 10

The compound shown below is norethyndrel,a synthetic estrogen.It was marketed in the first oral contraceptive under the name Enovid.   In addition to an alkane (actually cycloalkane)skeleton,the norethyndrel molecule also contains the following functional groups:

Accepted Answer

A) Ether,alcohol,alkyne 
B) Aldehyde,alkene,alkyne,alcohol 
C) Alcohol,carboxylic acid,alkene,alkyne 
D) Ketone,alkene,alcohol,alkyne 
E) Amine,alkene,ether,alkyne 
A) Ether,alcohol,alkyne 
B) Aldehyde,alkene,alkyne,alcohol 
C) Alcohol,carboxylic acid,alkene,alkyne 
D) Ketone,alkene,alcohol,alkyne 
E) Amine,alkene,ether,alkyne

Question 11

What common group is attached to both the ether and 3o amine in the following molecule?

Accepted Answer

A) benzyl 
B) phenyl 
C) heptyl 
D) ethyl 
E) None of these choices. 
A) benzyl 
B) phenyl 
C) heptyl 
D) ethyl 
E) None of these choices.

Question 12

Which of the following is not found in the following substance? CH3CH2CH2CH2CH2OH

Accepted Answer

A) Ion-ion 
B) Dispersion forces 
C) Dipole-dipole 
D) Covalent bonding 
E) Hydrogen bonding 
A) Ion-ion 
B) Dispersion forces 
C) Dipole-dipole 
D) Covalent bonding 
E) Hydrogen bonding

Question 13

Many organic compounds contain more than one functional group.Which of the following is/are both an aldehyde and an ether?

Accepted Answer

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

Question 14

IR absorption signals of alcohols are typically broad.However,IR spectra of gaseous samples show sharp peaks.Briefly explain why.

Accepted Answer

Broad signals of alcohols are

Question 15

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

Accepted Answer

A) a peak around 1700 cm-1 
B) a peak around 3300 cm-1 
C) only normal alkane absorptions 
D) a peak around 2250 cm-1 
E) None of these choices. 
A) a peak around 1700 cm-1 
B) a peak around 3300 cm-1 
C) only normal alkane absorptions 
D) a peak around 2250 cm-1 
E) None of these choices.

Question 16

Drawn below is atropine,found in Atropa belladonna,sometimes used in dilating pupils during an eye exam.Which of the following functional groups is NOT in atropine?

Accepted Answer

A) Amine 
B) Ester 
C) Alcohol 
D) Benzene ring 
E) Ketone 
A) Amine 
B) Ester 
C) Alcohol 
D) Benzene ring 
E) Ketone

Question 17

Which molecule(s)has/have dipole moment(s)equal to zero?

Accepted Answer

A)    
B)    
C)    
D)    
E) None of these choices have dipole moments equal to zero. 
A)    
B)    
C)    
D)    
E) None of these choices have dipole moments equal to zero.

Question 18

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 1700 and 1650 cm-1 
B) peaks around 3300 and 1710 cm-1 
C) peaks around 1650 and 3300 cm-1 
D) only a peak around 3300 cm-1 
E) None of these choices. 
A) peaks around 1700 and 1650 cm-1 
B) peaks around 3300 and 1710 cm-1 
C) peaks around 1650 and 3300 cm-1 
D) only a peak around 3300 cm-1 
E) None of these choices.

Question 19

The ___ is defined as the product of the magnitude of the charge of a particle and the distance that separates them.

Accepted Answer

The answer of The ___ is defined as the product...

Question 20

Hydrocarbons containing carbon-carbon double bonds are referred to as ___.

Accepted Answer

The answer of Hydrocarbons containing carbon-carbon double bonds are referred...

Exam 2: Families of Carbon

IR evidence for the presence of the C=C would be most difficult to detect in the case of which of these alkenes?

Which functional group is not contained in prostaglandin E1? Prostaglandin E1

Which molecule has a zero dipole moment?

Which compound(s)contain(s)tertiary carbon atom(s)?

A split peak for the IR absorption due to bond stretching is observed for the carbonyl group in which of these compounds?

Draw all isomers of C3H8O and classify each according to functional group.

For the following reaction sequence (it is not necessary to understand the chemistry)what significant change(s)would be expected by IR (ignoring C-H absorptions)?

Which compound is an ester?

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

The compound shown below is norethyndrel,a synthetic estrogen.It was marketed in the first oral contraceptive under the name Enovid. In addition to an alkane (actually cycloalkane)skeleton,the norethyndrel molecule also contains the following functional groups:

What common group is attached to both the ether and 3o amine in the following molecule?

Which of the following is not found in the following substance? CH3CH2CH2CH2CH2OH

Many organic compounds contain more than one functional group.Which of the following is/are both an aldehyde and an ether?

IR absorption signals of alcohols are typically broad.However,IR spectra of gaseous samples show sharp peaks.Briefly explain why.

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

Drawn below is atropine,found in Atropa belladonna,sometimes used in dilating pupils during an eye exam.Which of the following functional groups is NOT in atropine?

Which molecule(s)has/have dipole moment(s)equal to zero?

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

The ___ is defined as the product of the magnitude of the charge of a particle and the distance that separates them.

Hydrocarbons containing carbon-carbon double bonds are referred to as ___.

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

Which functional group is not contained in prostaglandin E₁? Prostaglandin E₁

Draw all isomers of C₃H₈O and classify each according to functional group.

What common group is attached to both the ether and 3^o amine in the following molecule?

Which of the following is not found in the following substance? CH₃CH₂CH₂CH₂CH₂OH