Question 1

Which of the following will give a positive test with Tollens' reagent?

Accepted Answer

A)  aldehydes 
B)  ketones 
C)  both a and b 
D)  neither a nor b 
A)  aldehydes 
B)  ketones 
C)  both a and b 
D)  neither a nor b

Question 2

What is the IUPAC name of the following compound?

Accepted Answer

A)  3-methyl-3-propylbutanal 
B)  3-methyl-3-propyl-1-butanal 
C)  3,3-dimethylhexanal 
D)  3,3-dimethyl-1-hexanal 
A)  3-methyl-3-propylbutanal 
B)  3-methyl-3-propyl-1-butanal 
C)  3,3-dimethylhexanal 
D)  3,3-dimethyl-1-hexanal

Question 3

Which of the following is true in naming ketones?

Accepted Answer

A)  The root name is based on the longest carbon chain which contains the carbonyl carbon. 
B)  The oxygen atom is always bonded to C-1. 
C)  both a and b 
D)  neither a nor b 
A)  The root name is based on the longest carbon chain which contains the carbonyl carbon. 
B)  The oxygen atom is always bonded to C-1. 
C)  both a and b 
D)  neither a nor b

Question 4

How many carbon atoms are present in the smallest aldehyde which cannot exhibit enol-keto tautomerism?

Accepted Answer

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

Question 5

What is the IUPAC name of HOCH2CH2CHO ?

Accepted Answer

A)  3-hydroxy-1-propanal 
B)  2-hydroxypropanal 
C)  3-hydroxypropanal 
D)  1,3-propanedial 
A)  3-hydroxy-1-propanal 
B)  2-hydroxypropanal 
C)  3-hydroxypropanal 
D)  1,3-propanedial

Question 6

Which structural feature is common to aldehydes and ketones?

Accepted Answer

A)  an oxygen atom bonded to both a carbon atom and a hydrogen atom 
B)  an oxygen atom bonded to two carbon atoms 
C)  an oxygen atom double bonded to a carbon atom 
D)  two oxygen atoms bonded to the same carbon atom 
A)  an oxygen atom bonded to both a carbon atom and a hydrogen atom 
B)  an oxygen atom bonded to two carbon atoms 
C)  an oxygen atom double bonded to a carbon atom 
D)  two oxygen atoms bonded to the same carbon atom

Question 7

What is the IUPAC name for the following compound?

Accepted Answer

A)  2-methyl-3-amino-1-cyclopentanone 
B)  3-amino-2-methyl-1-cyclopentanone 
C)  2-methyl-3-aminocyclopentanone 
D)  3-amino-2-methylcyclopentanone 
A)  2-methyl-3-amino-1-cyclopentanone 
B)  3-amino-2-methyl-1-cyclopentanone 
C)  2-methyl-3-aminocyclopentanone 
D)  3-amino-2-methylcyclopentanone

Question 8

Which of the following is true of hemiacetals?

Accepted Answer

A)  The most stable hemiacetals are noncyclic. 
B)  The most stable hemiacetals have four- or five-membered rings. 
C)  The most stable hemiacetals have five- or six-membered rings. 
D)  The most stable hemiacetals contain no OH groups. 
A)  The most stable hemiacetals are noncyclic. 
B)  The most stable hemiacetals have four- or five-membered rings. 
C)  The most stable hemiacetals have five- or six-membered rings. 
D)  The most stable hemiacetals contain no OH groups.

Question 9

Which of the following is obtained by oxidizing hexanal?

Accepted Answer

A)  hexanol 
B)  2-hexanone 
C)  hexanoic acid 
D)  none of these 
A)  hexanol 
B)  2-hexanone 
C)  hexanoic acid 
D)  none of these

Question 10

Which of the following is true in naming aldehydes?

Accepted Answer

A)  The root name is based on the longest carbon chain which contains the carbonyl carbon. 
B)  The oxygen atom is always bonded to C-1. 
C)  both a and b 
D)  neither a nor b 
A)  The root name is based on the longest carbon chain which contains the carbonyl carbon. 
B)  The oxygen atom is always bonded to C-1. 
C)  both a and b 
D)  neither a nor b

Question 11

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 12

How many ketone functional groups are present in the following compound?

Accepted Answer

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

Question 13

Which of the following has the lowest water solubility?

Accepted Answer

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

Question 14

Which of the following will give a positive test with Tollens' reagent?

Accepted Answer

A)  carboxylic acids 
B)  ketones 
C)  both a and b 
D)  neither a nor b 
A)  carboxylic acids 
B)  ketones 
C)  both a and b 
D)  neither a nor b

Question 15

Which of the following compounds contains an acetal functional group?

Accepted Answer

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

Question 16

Examine the following ball-and -stick models. Atoms other than carbon and hydrogen are labeled with the symbol of the element.       How is this reaction classified?

Accepted Answer

A)  oxidation 
B)  reduction 
C)  tautormerization 
D)  hemiacetal formation 
E)  none of the above 
A)  oxidation 
B)  reduction 
C)  tautormerization 
D)  hemiacetal formation 
E)  none of the above

Question 17

Which of the following will give a positive test with Tollens' reagent?

Accepted Answer

A)  aldehydes 
B)  carboxylic acids 
C)  both a and b 
D)  neither a nor b 
A)  aldehydes 
B)  carboxylic acids 
C)  both a and b 
D)  neither a nor b

Question 18

Which of the following will be obtained by the reduction of butanal using NaBH4 followed by treatment with water?

Accepted Answer

A)  butene 
B)  1-butanol 
C)  2-butanol 
D)  butanoic acid 
A)  butene 
B)  1-butanol 
C)  2-butanol 
D)  butanoic acid

Question 19

Examine the following ball-and -stick model. Atoms other than carbon and hydrogen are labeled with the symbol of the element.   What would be the product of the reaction of this substance with H2 in the presence of Pd?

Accepted Answer

A)  propanal 
B)  1-propanol 
C)  2-propanol 
D)  propanoic acid 
E)  This substance does not react under these conditions. 
A)  propanal 
B)  1-propanol 
C)  2-propanol 
D)  propanoic acid 
E)  This substance does not react under these conditions.

Question 20

In which of the following can hydrogen bonding occur?

Accepted Answer

A)  in a pure acetone 
B)  in a pure formaldehyde 
C)  in a mixture of acetone and formaldehyde 
D)  in none of these cases 
A)  in a pure acetone 
B)  in a pure formaldehyde 
C)  in a mixture of acetone and formaldehyde 
D)  in none of these cases

Exam 17: Aldehydes and Ketones

Which of the following will give a positive test with Tollens' reagent?

What is the IUPAC name of the following compound?

Which of the following is true in naming ketones?

How many carbon atoms are present in the smallest aldehyde which cannot exhibit enol-keto tautomerism?

What is the IUPAC name of HOCH2CH2CHO ?

Which structural feature is common to aldehydes and ketones?

What is the IUPAC name for the following compound?

Which of the following is true of hemiacetals?

Which of the following is obtained by oxidizing hexanal?

Which of the following is true in naming aldehydes?

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

How many ketone functional groups are present in the following compound?

Which of the following has the lowest water solubility?

Which of the following will give a positive test with Tollens' reagent?

Which of the following compounds contains an acetal functional group?

Examine the following ball-and -stick models. Atoms other than carbon and hydrogen are labeled with the symbol of the element. How is this reaction classified?

Which of the following will give a positive test with Tollens' reagent?

Which of the following will be obtained by the reduction of butanal using NaBH4 followed by treatment with water?

Examine the following ball-and -stick model. Atoms other than carbon and hydrogen are labeled with the symbol of the element. What would be the product of the reaction of this substance with H2 in the presence of Pd?

In which of the following can hydrogen bonding occur?

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 and Alkynes

Benzene and Its Derivatives

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

What is the IUPAC name of HOCH₂CH₂CHO ?

Which of the following will be obtained by the reduction of butanal using NaBH₄ followed by treatment with water?

Examine the following ball-and -stick model. Atoms other than carbon and hydrogen are labeled with the symbol of the element. What would be the product of the reaction of this substance with H₂ in the presence of Pd?