Question 1

What alkyl groups make up the following ether?

Accepted Answer

A)  ethyl and phenyl 
B)  propyl and benzyl 
C)  ethyl and benzyl 
D)  propyl and phenyl 
E)  None of these 
A)  ethyl and phenyl 
B)  propyl and benzyl 
C)  ethyl and benzyl 
D)  propyl and phenyl 
E)  None of these

Question 2

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 3300,2150,and 1650 cm-1 
B)  Peaks around 1710 and 1650 cm-1 
C)  Peaks around 1650 and 3300 cm-1 
D)  A peak around 2250 and 3300 cm-1 
E)  None of these 
A)  Peaks around 3300,2150,and 1650 cm-1 
B)  Peaks around 1710 and 1650 cm-1 
C)  Peaks around 1650 and 3300 cm-1 
D)  A peak around 2250 and 3300 cm-1 
E)  None of these

Question 3

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 4

Which compound would have the highest boiling point?

Accepted Answer

A)  CH3CH2CH2CH2CH2CH3 
B)  CH3CH2OCH2CH2CH3 
C)  CH3CH2CH2CH2CH2OH 
D)  CH3CH2OCH(CH3)2 
E)  CH3OCH2CH2CH2CH3 
A)  CH3CH2CH2CH2CH2CH3 
B)  CH3CH2OCH2CH2CH3 
C)  CH3CH2CH2CH2CH2OH 
D)  CH3CH2OCH(CH3)2 
E)  CH3OCH2CH2CH2CH3

Question 5

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

Question 6

Which of these compounds is a secondary alkyl chloride?

Accepted Answer

A)  CH3CH2CH2CH2CH2Cl 
B) 
  
C) 
  
D)  (CH3)2CHCHClCH3 
E)  Two of these 
A)  CH3CH2CH2CH2CH2Cl 
B) 
  
C) 
  
D)  (CH3)2CHCHClCH3 
E)  Two of these

Question 7

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

Accepted Answer

Question 8

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

Accepted Answer

A)  A peak around 3300 cm-1 would disappear and nothing new would appear. 
B)  A peak around 1710 cm-1 would appear and a new peak around 3300 cm-1 would disappear. 
C)  A peak around 1650 cm-1 would disappear and nothing new would appear. 
D)  No overall change would be observed. 
E)  None of these 
A)  A peak around 3300 cm-1 would disappear and nothing new would appear. 
B)  A peak around 1710 cm-1 would appear and a new peak around 3300 cm-1 would disappear. 
C)  A peak around 1650 cm-1 would disappear and nothing new would appear. 
D)  No overall change would be observed. 
E)  None of these

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 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 
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

Question 10

Draw all tertiary amine isomers of C6H15N.

Accepted Answer

Question 11

What alkyl groups make up the following 3o amine?

Accepted Answer

A)  sec-butyl,ethyl,propyl 
B)  isobutyl,isopropyl,ethyl 
C)  sec-butyl,ethyl,isopropyl 
D)  butyl,ethyl,propyl 
E)  None of these 
A)  sec-butyl,ethyl,propyl 
B)  isobutyl,isopropyl,ethyl 
C)  sec-butyl,ethyl,isopropyl 
D)  butyl,ethyl,propyl 
E)  None of these

Question 12

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

Accepted Answer

Question 13

Of the following solvents which one does not have a zero dipole moment?

Accepted Answer

A)  Pentane 
B)  Cyclohexane 
C)  Diethyl ether 
D)  Cyclopentane 
E)  None of these 
A)  Pentane 
B)  Cyclohexane 
C)  Diethyl ether 
D)  Cyclopentane 
E)  None of these

Question 14

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

Question 15

Which molecule would have a dipole moment greater than zero?

Accepted Answer

A)  BeCl2 
B)  BCl3 
C)  CO2 
D)  H2O 
E)  CCl4 
A)  BeCl2 
B)  BCl3 
C)  CO2 
D)  H2O 
E)  CCl4

Question 16

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 17

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 18

The number of unique open-chain structures corresponding to the molecular formula C3H5Cl is:

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 19

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 20

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

Exam 2: Representative Carbon Compounds: Functional Groups, Intermolecular Forces, and Infrared Ir Spectroscopy

What alkyl groups make up the following ether?

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

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

Which compound would have the highest boiling point?

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

Which of these compounds is a secondary alkyl chloride?

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

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

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

Draw all tertiary amine isomers of C6H15N.

What alkyl groups make up the following 3o amine?

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

Of the following solvents which one does not have a zero dipole moment?

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 molecule would have a dipole moment greater than zero?

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

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

The number of unique open-chain structures corresponding to the molecular formula C3H5Cl is:

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

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

Carbon Compounds and Chemical Bonds

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

Aldehydes and Ketones Ii Aldol Reactions

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

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

Draw all tertiary amine isomers of C₆H₁₅N.

What alkyl groups make up the following 3^o amine?

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

The number of unique open-chain structures corresponding to the molecular formula C₃H₅Cl is: