Question 1

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

Accepted Answer

A) 1o alcohol and 2o amine 
B) amide and 2o alcohol 
C) nitrile and 1o alcohol 
D) 2o amide and ether 
E) None of these choices. 
A) 1o alcohol and 2o amine 
B) amide and 2o alcohol 
C) nitrile and 1o alcohol 
D) 2o amide and ether 
E) None of these choices.

Question 2

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

Accepted Answer

A) Ketone and alkene 
B) Ketone and alkyne 
C) Aldehyde and alkene 
D) Aldehyde and alkyne 
E) 1o alcohol and alkene 
A) Ketone and alkene 
B) Ketone and alkyne 
C) Aldehyde and alkene 
D) Aldehyde and alkyne 
E) 1o alcohol and alkene

Question 3

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

Accepted Answer

A) n-Butyl alcohol 
B) Isobutyl alcohol 
C) sec-Butyl alcohol 
D) tert-Butyl alcohol 
E) Diethyl ether 
A) n-Butyl alcohol 
B) Isobutyl alcohol 
C) sec-Butyl alcohol 
D) tert-Butyl alcohol 
E) Diethyl ether

Question 4

Which is a carboxylic acid?

Accepted Answer

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

Question 5

The solid alkane CH3(CH2)18CH3 is expected to exhibit the greatest solubility in which of the following solvents?

Accepted Answer

A) CCl4 
B) CH3OH 
C) H2O 
D) CH3NH2 
E) HOCH2CH2OH 
A) CCl4 
B) CH3OH 
C) H2O 
D) CH3NH2 
E) HOCH2CH2OH

Question 6

What functional group is present in the following compound?

Accepted Answer

A) alcohol 
B) ketone 
C) aldehyde 
D) ester 
E) ether 
A) alcohol 
B) ketone 
C) aldehyde 
D) ester 
E) ether

Question 7

An IR spectrum has significant peaks at 3080 and 1650 cm-1.What functional group is present in the molecule?

Accepted Answer

Question 8

Ethanol,C2H5OH,and dimethyl ether,CH3OCH3,have the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.

Accepted Answer

Strong hydrogen bonding between molecule

Question 9

An anticipated IR absorption band may not be observed because

Accepted Answer

A) it occurs outside the range of the instrument used. 
B) no change occurs in the dipole moment during the vibration. 
C) the absorption band is eclipsed by another. 
D) the intensity is so weak that it cannot be differentiated from instrument noise. 
E) All of these choices. 
A) it occurs outside the range of the instrument used. 
B) no change occurs in the dipole moment during the vibration. 
C) the absorption band is eclipsed by another. 
D) the intensity is so weak that it cannot be differentiated from instrument noise. 
E) All of these choices.

Question 10

Which molecule has a zero dipole moment?

Accepted Answer

A) CH3Cl 
B) CH2Cl2 
C) CHCl3 
D) CCl4 
E) None of these choices. 
A) CH3Cl 
B) CH2Cl2 
C) CHCl3 
D) CCl4 
E) None of these choices.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

A) ether and 2o amine 
B) ester and 3o amine 
C) 3o amine 
D) 3o amine and ether 
E) None of these choices. 
A) ether and 2o amine 
B) ester and 3o amine 
C) 3o amine 
D) 3o amine and ether 
E) None of these choices.

Question 13

Draw all isomers of C6H12O that are aldehydes and contain at least one tertiary carbon.

Accepted Answer

Question 14

How many 2º alkyl bromides,neglecting stereoisomers,exist with the formula C6H13Br?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 15

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

Accepted Answer

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

Question 16

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 3300 cm-1 would disappear. 
B) A peak around 1710 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
C) A peak around 2150 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
D) No change would be observed. 
E) None of these choices. 
A) A peak around 3300 cm-1 would disappear. 
B) A peak around 1710 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
C) A peak around 2150 cm-1 would disappear and a new peak around 3300 cm-1 would appear. 
D) No change would be observed. 
E) None of these choices.

Question 17

Draw all isomers of C6H14.

Accepted Answer

Question 18

What functional group is present in the following compound?

Accepted Answer

A) 1o alcohol 
B) ether 
C) 2o alcohol 
D) ester 
E) 3o alcohol 
A) 1o alcohol 
B) ether 
C) 2o alcohol 
D) ester 
E) 3o alcohol

Question 19

Which of these is the weakest of the intermolecular attractive forces taken individually?

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 20

What intermolecular forces hold base pairs together in DNA?

Accepted Answer

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

Exam 2: Families of Carbon

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

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

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

Which is a carboxylic acid?

The solid alkane CH3(CH2)18CH3 is expected to exhibit the greatest solubility in which of the following solvents?

What functional group is present in the following compound?

An IR spectrum has significant peaks at 3080 and 1650 cm-1.What functional group is present in the molecule?

Ethanol,C2H5OH,and dimethyl ether,CH3OCH3,have the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.

An anticipated IR absorption band may not be observed because

Which molecule has a zero dipole moment?

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

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

Draw all isomers of C6H12O that are aldehydes and contain at least one tertiary carbon.

How many 2º alkyl bromides,neglecting stereoisomers,exist with the formula C6H13Br?

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

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)?

Draw all isomers of C6H14.

What functional group is present in the following compound?

Which of these is the weakest of the intermolecular attractive forces taken individually?

What intermolecular forces hold base pairs together in DNA?

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

The solid alkane CH₃(CH₂)₁₈CH₃ is expected to exhibit the greatest solubility in which of the following solvents?

An IR spectrum has significant peaks at 3080 and 1650 cm^-¹.What functional group is present in the molecule?

Ethanol,C₂H₅OH,and dimethyl ether,CH₃OCH₃,have the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.

Draw all isomers of C₆H₁₂O that are aldehydes and contain at least one tertiary carbon.

How many 2º alkyl bromides,neglecting stereoisomers,exist with the formula C₆H₁₃Br?

Draw all isomers of C₆H₁₄.