Question 1

What hemiacetal is formed in the reaction below?

Accepted Answer

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

Question 2

The compound decanal contributes to the odor and flavor of an orange. Which of the statements concerning the structure of decanal is incorrect?

Accepted Answer

A) Decanal is an aldehyde. 
B) Decanal contains a saturated chain of ten carbons. 
C) Decanal contains a carbonyl group on the first carbon of the carbon chain. 
D) Decanal is an aromatic compound. 
A) Decanal is an aldehyde. 
B) Decanal contains a saturated chain of ten carbons. 
C) Decanal contains a carbonyl group on the first carbon of the carbon chain. 
D) Decanal is an aromatic compound. D

Question 3

Aldehydes and ketones undergo addition reactions,which break one of the bonds in the carbon-oxygen double bond.

Accepted Answer

A) True 
 B)False  True

Question 4

Which reagent can be used to reduce a ketone?

Accepted Answer

A) K2Cr2O7 
B) H2SO4 
C) H2 with Pd metal 
D) Ag2O in aqueous NH4OH 
A) K2Cr2O7 
B) H2SO4 
C) H2 with Pd metal 
D) Ag2O in aqueous NH4OH

Question 5

When 3-heptanone is treated with 2 equivalents of 1-butanol in the presence of sulfuric acid,the product is the compound shown below.

Accepted Answer

A) True 
 B)False

Question 6

What product is formed when the compound below is oxidized with K2Cr2O7?

Accepted Answer

A)    
B)    
C)    
D) No reaction occurs. 
A)    
B)    
C)    
D) No reaction occurs.

Question 7

Which is the structure of 3-bromo-2-methylbutanal?

Accepted Answer

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

Question 8

All compounds that react with the Tollens reagent react with K2Cr2O7,but not all compounds that react with K2Cr2O7 react with the Tollens reagent.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is the product of the reduction of acetone,shown below?

Accepted Answer

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

Question 10

Which compound is a hemiacetal?

Accepted Answer

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

Question 11

Aldehydes and ketones undergo addition reactions with alcohols (ROH)to form hemiacetals and acetals.

Accepted Answer

A) True 
 B)False

Question 12

The compound shown below belongs to what class of compounds?

Accepted Answer

A) Alkane 
B) Aldehyde 
C) Ketone 
D) Acetal 
E) Carboxylic acid 
A) Alkane 
B) Aldehyde 
C) Ketone 
D) Acetal 
E) Carboxylic acid

Question 13

Oxidation of the aldehyde below gives the indicated product.

Accepted Answer

A) True 
 B)False

Question 14

Aldehydes are identified by the suffix ________,and the carbon chain is numbered to place the carbonyl group as the ________ (first/last)carbon atom.

Accepted Answer

The answer of Aldehydes are identified by the suffix ________,and...

Question 15

The IUPAC name of the molecule below is 3-ethoxy-3-propoxy-7-heptanal.

Accepted Answer

A) True 
 B)False

Question 16

A student incorrectly names a compound as 4-propyl-2,4-dimethyl-2-chloro-1-pentanone. The correct IUPAC name of this compound is ________.

Accepted Answer

2-chloro-2

Question 17

The compound below is classified as what type of compound?

Accepted Answer

A) An acetal 
B) A hemiacetal 
C) An ether 
D) An acetal and an ether 
A) An acetal 
B) A hemiacetal 
C) An ether 
D) An acetal and an ether

Question 18

What is the structure of 2-ethyl-4-methyloctanal?

Accepted Answer

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

Question 19

What product results when cinnamaldehyde is reduced with excess H2 in the presence of a Pd catalyst?

Accepted Answer

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

Question 20

What products are formed when the acetal below is hydrolyzed with water and sulfuric acid?

Accepted Answer

A)    
B)    
C) HOCH2CH2CH2CH2CH3 + 2 CH3OH 
D)    
A)    
B)    
C) HOCH2CH2CH2CH2CH3 + 2 CH3OH 
D)

Exam 16: Aldehydes and Ketones

What hemiacetal is formed in the reaction below?

The compound decanal contributes to the odor and flavor of an orange. Which of the statements concerning the structure of decanal is incorrect?

Aldehydes and ketones undergo addition reactions,which break one of the bonds in the carbon-oxygen double bond.

Which reagent can be used to reduce a ketone?

When 3-heptanone is treated with 2 equivalents of 1-butanol in the presence of sulfuric acid,the product is the compound shown below.

What product is formed when the compound below is oxidized with K2Cr2O7?

Which is the structure of 3-bromo-2-methylbutanal?

All compounds that react with the Tollens reagent react with K2Cr2O7,but not all compounds that react with K2Cr2O7 react with the Tollens reagent.

Which of the following is the product of the reduction of acetone,shown below?

Which compound is a hemiacetal?

Aldehydes and ketones undergo addition reactions with alcohols (ROH)to form hemiacetals and acetals.

The compound shown below belongs to what class of compounds?

Oxidation of the aldehyde below gives the indicated product.

Aldehydes are identified by the suffix ________,and the carbon chain is numbered to place the carbonyl group as the ________ (first/last)carbon atom.

The IUPAC name of the molecule below is 3-ethoxy-3-propoxy-7-heptanal.

A student incorrectly names a compound as 4-propyl-2,4-dimethyl-2-chloro-1-pentanone. The correct IUPAC name of this compound is ________.

The compound below is classified as what type of compound?

What is the structure of 2-ethyl-4-methyloctanal?

What product results when cinnamaldehyde is reduced with excess H2 in the presence of a Pd catalyst?

What products are formed when the acetal below is hydrolyzed with water and sulfuric acid?

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

What product is formed when the compound below is oxidized with K₂Cr₂O₇?

All compounds that react with the Tollens reagent react with K₂Cr₂O₇,but not all compounds that react with K₂Cr₂O₇ react with the Tollens reagent.

Aldehydes are identified by the suffix ,and the carbon chain is numbered to place the carbonyl group as the (first/last)carbon atom.

What product results when cinnamaldehyde is reduced with excess H₂ in the presence of a Pd catalyst?