Question 1

What is the common name of the following compound?

Accepted Answer

A) propanone 
B) propanal 
C) 2-propyl ketone 
D) 1-propyl ketone 
E) acetone 
A) propanone 
B) propanal 
C) 2-propyl ketone 
D) 1-propyl ketone 
E) acetone E

Question 2

When a hemiacetal reacts with an alcohol,an acetal is formed.This is how disaccharides and polysaccharides are formed.What is the structure of the acetal formed in the following reaction?

Accepted Answer

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

Question 3

What compound is produced when 2-methyl-3-pentanol is oxidized?

Accepted Answer

A) 2-methyl-3-pentanone 
B) 2-methyl-3-pentanal 
C) 2-methyl-3-pentene 
D) 2-methylpentone 
E) It does not undergo oxidation. 
A) 2-methyl-3-pentanone 
B) 2-methyl-3-pentanal 
C) 2-methyl-3-pentene 
D) 2-methylpentone 
E) It does not undergo oxidation. A

Question 4

What is the IUPAC name of the aldehyde produced when ethanol is oxidized? $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$ $\stackrel{[\mathrm{O}]}{\longrightarrow} \text { ? }$

Accepted Answer

A) acetal 
B) acetone 
C) ethanal 
D) ethanone 
E) None of the choices are correct. 
A) acetal 
B) acetone 
C) ethanal 
D) ethanone 
E) None of the choices are correct.

Question 5

An acetal contains two ether functional groups.

Accepted Answer

A) True 
 B)False

Question 6

Cyclopentanone reacts with one molecule of ethanol to yield a hemiacetal product.Which of the following correctly represents the structure of the hemiacetal product?   $+\mathrm{HOCH}_{2} \mathrm{CH}_{3} \stackrel{\mathrm{H}^{+}}{\rightleftharpoons}$

Accepted Answer

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

Question 7

What class of compounds is formed by oxidation of aldehydes?

Accepted Answer

A) enols 
B) carboxylic acids 
C) ketones 
D) acetals 
E) Aldehydes do not undergo oxidation. 
A) enols 
B) carboxylic acids 
C) ketones 
D) acetals 
E) Aldehydes do not undergo oxidation.

Question 8

What class of compounds is represented by the general formula RCHO?

Accepted Answer

A) ketones 
B) carboxylic acids 
C) alkenes 
D) alcohols 
E) aldehydes 
A) ketones 
B) carboxylic acids 
C) alkenes 
D) alcohols 
E) aldehydes

Question 9

A hemiacetal contains two ether functional groups.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following sets of reactant molecules can react in the presence of a trace of acid to give an acetal molecule?

Accepted Answer

A) one ketone molecule and two aldehyde molecules 
B) one ketone molecule and two alcohol molecules 
C) one ketone molecule and one aldehyde molecule 
D) one ketone molecule and one alcohol molecule 
E) one alcohol molecule and two ketone molecules 
A) one ketone molecule and two aldehyde molecules 
B) one ketone molecule and two alcohol molecules 
C) one ketone molecule and one aldehyde molecule 
D) one ketone molecule and one alcohol molecule 
E) one alcohol molecule and two ketone molecules

Question 11

What is the IUPAC name of the compound produced in the liver that is responsible for the symptoms of a hangover?

Accepted Answer

A) acetone 
B) acetic acid 
C) ethanol 
D) ethanal 
E) 2-propanol 
A) acetone 
B) acetic acid 
C) ethanol 
D) ethanal 
E) 2-propanol

Question 12

Which statement best describes the structural difference between aldehydes and ketones?

Accepted Answer

A) Aldehydes contain a hydroxyl group; ketones contain a carbonyl group. 
B) Aldehydes contain a carbonyl group on an end carbon of the carbon chain; ketones contain a carbonyl group on a carbon within the carbon chain. 
C) Ketones are cyclic compounds; aldehydes are acyclic compounds. 
D) The carbonyl group of a ketone is bonded to an oxygen atom; the carbonyl group of an aldehyde is bonded to a hydrogen atom. 
E) The carbonyl group of an aldehyde is bonded to two carbon atoms; the carbonyl group of a ketone is bonded to at least one hydrogen atom. 
A) Aldehydes contain a hydroxyl group; ketones contain a carbonyl group. 
B) Aldehydes contain a carbonyl group on an end carbon of the carbon chain; ketones contain a carbonyl group on a carbon within the carbon chain. 
C) Ketones are cyclic compounds; aldehydes are acyclic compounds. 
D) The carbonyl group of a ketone is bonded to an oxygen atom; the carbonyl group of an aldehyde is bonded to a hydrogen atom. 
E) The carbonyl group of an aldehyde is bonded to two carbon atoms; the carbonyl group of a ketone is bonded to at least one hydrogen atom.

Question 13

Pure formaldehyde is a liquid at room temperature.

Accepted Answer

A) True 
 B)False

Question 14

What is the name of the organic product formed when the compound,CH3CH2CH2CHO,is reduced by addition of H2?

Accepted Answer

A) butane 
B) 1-butanol 
C) 1-butanone 
D) butanal 
E) butanoic acid 
A) butane 
B) 1-butanol 
C) 1-butanone 
D) butanal 
E) butanoic acid

Question 15

What is the IUPAC name for the product of the reaction shown? $\mathrm { CH } _ { 3 } \mathrm { OH } \stackrel { [ \mathrm { O } ] } { \longrightarrow } \text { ? }$

Accepted Answer

A) acetone 
B) methanal 
C) acetic acid 
D) acetal 
E) propanone 
A) acetone 
B) methanal 
C) acetic acid 
D) acetal 
E) propanone

Question 16

Where in the body is ethanol oxidized to produce ethanal?

Accepted Answer

A) stomach 
B) liver 
C) small intestine 
D) large intestine 
E) Both small intestine and large intestine are correct. 
A) stomach 
B) liver 
C) small intestine 
D) large intestine 
E) Both small intestine and large intestine are correct.

Question 17

What type of compound is formed in the following reaction?   $+ \mathrm { ROH } \longrightarrow \mathrm { H } ^ { + } \longrightarrow$?

Accepted Answer

A) acetal 
B) aldehyde 
C) hemiacetal 
D) enol 
E) ketone 
A) acetal 
B) aldehyde 
C) hemiacetal 
D) enol 
E) ketone

Question 18

What simple ketone is commonly used as a solvent?

Accepted Answer

A) acetal 
B) formalin 
C) acetone 
D) benzanal 
E) butanone 
A) acetal 
B) formalin 
C) acetone 
D) benzanal 
E) butanone

Question 19

Which of the following does NOT represent an oxidation reaction?

Accepted Answer

A) ethanal → ethanol 
B) benzaldehyde → benzoic acid 
C) 2-propanol → propanone 
D) 1-propanol → propanal 
E) All of the reactions are oxidation reactions. 
A) ethanal → ethanol 
B) benzaldehyde → benzoic acid 
C) 2-propanol → propanone 
D) 1-propanol → propanal 
E) All of the reactions are oxidation reactions.

Question 20

In any pair of keto-enol tautomers,the keto form is generally more stable than the enol form.

Accepted Answer

A) True 
 B)False

Exam 13: Aldehydes and Ketones

What is the common name of the following compound?

When a hemiacetal reacts with an alcohol,an acetal is formed.This is how disaccharides and polysaccharides are formed.What is the structure of the acetal formed in the following reaction?

What compound is produced when 2-methyl-3-pentanol is oxidized?

What is the IUPAC name of the aldehyde produced when ethanol is oxidized? CH3CH2OH\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}CH3​CH2​OH ⟶[O] ? \stackrel{[\mathrm{O}]}{\longrightarrow} \text { ? }⟶[O]​ ?

An acetal contains two ether functional groups.

Cyclopentanone reacts with one molecule of ethanol to yield a hemiacetal product.Which of the following correctly represents the structure of the hemiacetal product? +HOCH2CH3⇌H++\mathrm{HOCH}_{2} \mathrm{CH}_{3} \stackrel{\mathrm{H}^{+}}{\rightleftharpoons}+HOCH2​CH3​⇌H+​

What class of compounds is formed by oxidation of aldehydes?

What class of compounds is represented by the general formula RCHO?

A hemiacetal contains two ether functional groups.

Which of the following sets of reactant molecules can react in the presence of a trace of acid to give an acetal molecule?

What is the IUPAC name of the compound produced in the liver that is responsible for the symptoms of a hangover?

Which statement best describes the structural difference between aldehydes and ketones?

Pure formaldehyde is a liquid at room temperature.

What is the name of the organic product formed when the compound,CH3CH2CH2CHO,is reduced by addition of H2?

What is the IUPAC name for the product of the reaction shown? CH3OH⟶[O] ? \mathrm { CH } _ { 3 } \mathrm { OH } \stackrel { [ \mathrm { O } ] } { \longrightarrow } \text { ? }CH3​OH⟶[O]​ ?

Where in the body is ethanol oxidized to produce ethanal?

What type of compound is formed in the following reaction? +ROH⟶H+⟶+ \mathrm { ROH } \longrightarrow \mathrm { H } ^ { + } \longrightarrow+ROH⟶H+⟶ ?

What simple ketone is commonly used as a solvent?

Which of the following does NOT represent an oxidation reaction?

In any pair of keto-enol tautomers,the keto form is generally more stable than the enol form.

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

What is the IUPAC name of the aldehyde produced when ethanol is oxidized? $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$ $\stackrel{[\mathrm{O}]}{\longrightarrow} \text { ? }$

What is the name of the organic product formed when the compound,CH₃CH₂CH₂CHO,is reduced by addition of H₂?

What is the IUPAC name for the product of the reaction shown? $\mathrm { CH } _ { 3 } \mathrm { OH } \stackrel { [ \mathrm { O } ] } { \longrightarrow } \text { ? }$

What type of compound is formed in the following reaction? $What type of compound is formed in the following reaction? + \mathrm { ROH } \longrightarrow \mathrm { H } ^ { + } \longrightarrow ?$ $+ \mathrm { ROH } \longrightarrow \mathrm { H } ^ { + } \longrightarrow$ ?