Question 1

In biological systems, which of the following compounds reduces aldehydes and ketones?

Accepted Answer

A)  NADH2 
B)  NADH 
C)  NAD+ 
D)  none of these 
A)  NADH2 
B)  NADH 
C)  NAD+ 
D)  none of these

Question 2

What is the IUPAC name of the following compound?

Accepted Answer

A)  1-pentaldehyde 
B)  pentanal 
C)  pentanoate 
D)  pentanone 
A)  1-pentaldehyde 
B)  pentanal 
C)  pentanoate 
D)  pentanone

Question 3

How many α−hydrogens are present in the following compound?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3

Question 4

Answer the following question based on the given structure.   In order to convert the given compound to the corresponding alcohol, which of the following reagents should be used?

Accepted Answer

A)  H2/Pd 
B)  NaBH4/H2O 
C)  K2Cr2O7/H2SO4 
D)  AgNO3/NH3 
E)  either H2/Pd or NaBH4/H2O 
A)  H2/Pd 
B)  NaBH4/H2O 
C)  K2Cr2O7/H2SO4 
D)  AgNO3/NH3 
E)  either H2/Pd or NaBH4/H2O

Question 5

What is the IUPAC name of propyl isobutyl ketone?

Accepted Answer

A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone 
A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone

Question 6

What is the correct order of boiling points of the following compounds?

Accepted Answer

A)  A > B > C 
B)  C > B > A 
C)  B > A > C 
D)  A > C > B 
A)  A > B > C 
B)  C > B > A 
C)  B > A > C 
D)  A > C > B

Question 7

Which of the following compounds can undergo keto-enol tautomerism?

Accepted Answer

A)  2-methylpentanal 
B)  2,2-dimethylbutanal 
C)  both 2-methylpentanal and 2,2-dimethylbutanal 
D)  none of these 
A)  2-methylpentanal 
B)  2,2-dimethylbutanal 
C)  both 2-methylpentanal and 2,2-dimethylbutanal 
D)  none of these

Question 8

Which of the following compounds contain an acetal functional group?

Accepted Answer

A)  A and B 
B)  A and C 
C)  B and C 
D)  only C 
A)  A and B 
B)  A and C 
C)  B and C 
D)  only C

Question 9

Which of the following pairs of reactants produces a hemiacetal?

Accepted Answer

A)  ketone and alcohol 
B)  ketone and aldehyde 
C)  ketone and carboxylic acid 
D)  none of these 
A)  ketone and alcohol 
B)  ketone and aldehyde 
C)  ketone and carboxylic acid 
D)  none of these

Question 10

Which of the following compounds will undergo oxidation using potassium dichromate to form a carboxylic acid?

Accepted Answer

A)  A and B only 
B)  A and C only 
C)  B only 
D)  C only 
A)  A and B only 
B)  A and C only 
C)  B only 
D)  C only

Question 11

Which of following statements is correct regarding the following chemical reaction?

Accepted Answer

A)  Both the carbon-carbon and the carbon-oxygen double bonds will be reduced. 
B)  Only the carbon-carbon double bond will be reduced. 
C)  Only the carbon-oxygen double bond will be reduced. 
D)  Neither the carbon-carbon double bond nor the carbon-oxygen double bond will be reduced. 
A)  Both the carbon-carbon and the carbon-oxygen double bonds will be reduced. 
B)  Only the carbon-carbon double bond will be reduced. 
C)  Only the carbon-oxygen double bond will be reduced. 
D)  Neither the carbon-carbon double bond nor the carbon-oxygen double bond will be reduced.

Question 12

How many different ketones have the molecular formula C5H10O?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 13

Of the various -OH groups in the following carbohydrate, how many are part of the hemiacetal functional group?

Accepted Answer

A)  4 
B)  1 
C)  2 
D)  3 
A)  4 
B)  1 
C)  2 
D)  3

Question 14

Identify the correct enol form of 2-butanone.

Accepted Answer

A)    
B)    
C)  both   and
  
D)  none of these 
A)    
B)    
C)  both   and
  
D)  none of these

Question 15

Which of the following compounds has the lowest water solubility?

Accepted Answer

A)  butanal 
B)  heptanal 
C)  hexanal 
D)  pentanal 
A)  butanal 
B)  heptanal 
C)  hexanal 
D)  pentanal

Question 16

Identify the IUPAC name of the given compound.

Accepted Answer

A)  1-propylbenzophenone 
B)  1-phenyl-1-propanone 
C)  1-propylphenylketone 
D)  1-phenylpropyl ketone 
A)  1-propylbenzophenone 
B)  1-phenyl-1-propanone 
C)  1-propylphenylketone 
D)  1-phenylpropyl ketone

Question 17

How many different aldehydes have the molecular formula C4H8O?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 18

Which of the following compounds has the lowest boiling point?

Accepted Answer

A)  butane 
B)  propanal 
C)  ethyl methyl ether 
D)  1-propanol 
A)  butane 
B)  propanal 
C)  ethyl methyl ether 
D)  1-propanol

Question 19

What is the IUPAC name of propyl tert-butyl ketone?

Accepted Answer

A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone 
A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone

Question 20

What is the IUPAC name of propyl sec-butyl ketone?

Accepted Answer

A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone 
A)  4-octanone 
B)  2-methyl-4-heptanone 
C)  3-methyl-4-heptanone 
D)  2,2-dimethyl-3-hexanone

Exam 16: Aldehydes and Ketones

In biological systems, which of the following compounds reduces aldehydes and ketones?

What is the IUPAC name of the following compound?

How many α−hydrogens are present in the following compound?

Answer the following question based on the given structure. In order to convert the given compound to the corresponding alcohol, which of the following reagents should be used?

What is the IUPAC name of propyl isobutyl ketone?

What is the correct order of boiling points of the following compounds?

Which of the following compounds can undergo keto-enol tautomerism?

Which of the following compounds contain an acetal functional group?

Which of the following pairs of reactants produces a hemiacetal?

Which of the following compounds will undergo oxidation using potassium dichromate to form a carboxylic acid?

Which of following statements is correct regarding the following chemical reaction?

How many different ketones have the molecular formula C5H10O?

Of the various -OH groups in the following carbohydrate, how many are part of the hemiacetal functional group?

Identify the correct enol form of 2-butanone.

Which of the following compounds has the lowest water solubility?

Identify the IUPAC name of the given compound.

How many different aldehydes have the molecular formula C4H8O?

Which of the following compounds has the lowest boiling point?

What is the IUPAC name of propyl tert-butyl ketone?

What is the IUPAC name of propyl sec-butyl ketone?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

How many different ketones have the molecular formula C₅H₁₀O?

How many different aldehydes have the molecular formula C₄H₈O?