Question 1

A group in which a carbon atom has a double bond to an oxygen atom is called a ___.

Accepted Answer

The answer of A group in which a carbon atom...

Question 2

Which compound is a tertiary alcohol?

Accepted Answer

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

Question 3

What alkyl groups make up the following ether?

Accepted Answer

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

Question 4

Which functional groups are present in the following compound?

Accepted Answer

A) Alkene,1º alcohol,ketone 
B) Alkene,2º alcohol,aldehyde 
C) Alkene,2º alcohol,ketone 
D) Alkyne,1º alcohol,aldehyde 
E) Alkyne,2º alcohol,ketone 
A) Alkene,1º alcohol,ketone 
B) Alkene,2º alcohol,aldehyde 
C) Alkene,2º alcohol,ketone 
D) Alkyne,1º alcohol,aldehyde 
E) Alkyne,2º alcohol,ketone

Question 5

An oxygen-containing compound which shows sharp IR absorption at 2200 cm-1 and 3300 cm-1 is likely to contain which functional group?

Accepted Answer

A) An ester 
B) An alkene 
C) An alkyne 
D) An ether 
E) An aldehyde 
A) An ester 
B) An alkene 
C) An alkyne 
D) An ether 
E) An aldehyde

Question 6

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 and a new peak around 3300-3500 cm-1 would appear. 
B) A peak around 1710 cm-1 would disappear and a new peak around 1650 cm-1 would appear. 
C) A peak around 2150 cm-1 would disappear and a new peak around 3300-3500 cm-1 would appear. 
D) No change would be observed. 
E) None of these choices. 
A) A peak around 1710 cm-1 would disappear and a new peak around 3300-3500 cm-1 would appear. 
B) A peak around 1710 cm-1 would disappear and a new peak around 1650 cm-1 would appear. 
C) A peak around 2150 cm-1 would disappear and a new peak around 3300-3500 cm-1 would appear. 
D) No change would be observed. 
E) None of these choices.

Question 7

A polar covalent bond is one in which electrons are ___.

Accepted Answer

The answer of A polar covalent bond is one in...

Question 8

What functional group is present in the following compound?

Accepted Answer

A) 1o alkyl bromide 
B) 2o amine 
C) nitrile 
D) 1o amine 
E) 3o amine 
A) 1o alkyl bromide 
B) 2o amine 
C) nitrile 
D) 1o amine 
E) 3o amine

Question 9

How many constitutional isomers are possible with the formula C4H10O?

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
E) 7 
A) 3 
B) 4 
C) 5 
D) 6 
E) 7

Question 10

The IR spectrum of which of the following substances is likely to show a small,but sharp peak at 2200 cm-1?

Accepted Answer

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

Question 11

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) a peak around 1650 cm-1 
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) a peak around 1650 cm-1 
D) a peak around 2250 cm-1 
E) None of these choices.

Question 12

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 13

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) a strong broad peak over 3600 to 2500 and around 1710 cm-1 
C) peaks around 1650 and 3300 cm-1 
D) peaks around 3300 and 1710 cm-1 
E) None of these choices. 
A) peaks around 1700 and 1650 cm-1 
B) a strong broad peak over 3600 to 2500 and around 1710 cm-1 
C) peaks around 1650 and 3300 cm-1 
D) peaks around 3300 and 1710 cm-1 
E) None of these choices.

Question 14

Which is a 3S1U1P1$\circ$S1S1P0 alkyl halide?

Accepted Answer

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

Question 15

Which is a 3S1U1P1$\circ$S1S1P0 amine?

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

What functional group is present in the following compound?

Accepted Answer

A) 1o alkyl halide 
B) 2o alcohol 
C) 2o alkyl halide 
D) 1o amine 
E) 3o alkyl halide 
A) 1o alkyl halide 
B) 2o alcohol 
C) 2o alkyl halide 
D) 1o amine 
E) 3o alkyl halide

Question 18

The IR spectrum of which type of compound will not show evidence of hydrogen bonding?

Accepted Answer

A) Aldehyde 
B) Alcohol 
C) Carboxylic acid 
D) Phenol 
E) Primary amine 
A) Aldehyde 
B) Alcohol 
C) Carboxylic acid 
D) Phenol 
E) Primary amine

Question 19

Nitromethane is a polar molecule but contains 2 equal polar covalent bonds.Briefly explain why and draw a relevant 3-dimensional structure to show the overall dipole moment of the molecule.

Accepted Answer

The nitro group has 2 polar N-

Question 20

Ethanol,C2H5OH,and propane,C3H8,have approximately the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.

Accepted Answer

Strong hydrogen bonding between molecule

Exam 2: Families of Carbon

A group in which a carbon atom has a double bond to an oxygen atom is called a ___.

Which compound is a tertiary alcohol?

What alkyl groups make up the following ether?

Which functional groups are present in the following compound?

An oxygen-containing compound which shows sharp IR absorption at 2200 cm-1 and 3300 cm-1 is likely to contain which 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)?

A polar covalent bond is one in which electrons are ___.

What functional group is present in the following compound?

How many constitutional isomers are possible with the formula C4H10O?

The IR spectrum of which of the following substances is likely to show a small,but sharp peak at 2200 cm-1?

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

What functional group is present in the following compound?

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

Which is a 3 ∘\circ∘ alkyl halide?

Which is a 3 ∘\circ∘ amine?

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

What functional group is present in the following compound?

The IR spectrum of which type of compound will not show evidence of hydrogen bonding?

Nitromethane is a polar molecule but contains 2 equal polar covalent bonds.Briefly explain why and draw a relevant 3-dimensional structure to show the overall dipole moment of the molecule.

Ethanol,C2H5OH,and propane,C3H8,have approximately the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.

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

An oxygen-containing compound which shows sharp IR absorption at 2200 cm^-1 and 3300 cm^-1 is likely to contain which functional group?

How many constitutional isomers are possible with the formula C₄H₁₀O?

The IR spectrum of which of the following substances is likely to show a small,but sharp peak at 2200 cm^-¹?

Which is a 3^$\circ$ alkyl halide? $Which is a 3<sup> \circ </sup> alkyl halide?$

Which is a 3^$\circ$ amine? $Which is a 3<sup> \circ </sup> amine?$

Ethanol,C₂H₅OH,and propane,C₃H₈,have approximately the same molar mass,yet ethanol has a much higher boiling point.Briefly explain why.