Question 1

When the compound shown is treated with H2 and a Pd catalyst,the indicated product is formed.

Accepted Answer

A) True 
 B)False

Question 2

When the hemiacetal below reacts with ethanol,what acetal is formed?

Accepted Answer

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

Question 3

The compound butanone does not need a number to specify the location of the carbonyl group on the carbon chain. Which statement best explains why?

Accepted Answer

A) The C=O is assumed to be on C-1 of the carbon chain if it is not specified. 
B) The C=O can only be on C-2 of the carbon chain in this compound. 
C) The location of the C=O does not need to be specified for a cyclic ketone. 
D) The C=O is on an end carbon of the carbon chain. 
A) The C=O is assumed to be on C-1 of the carbon chain if it is not specified. 
B) The C=O can only be on C-2 of the carbon chain in this compound. 
C) The location of the C=O does not need to be specified for a cyclic ketone. 
D) The C=O is on an end carbon of the carbon chain.

Question 4

What type of compound is shown below?

Accepted Answer

A) An epoxide 
B) A cyclic hemiacetal 
C) An aldehyde 
D) A cyclic acetal 
A) An epoxide 
B) A cyclic hemiacetal 
C) An aldehyde 
D) A cyclic acetal

Question 5

The reduction of acetaldehyde is an important biochemical reaction. Which of the following is the product of its reduction?

Accepted Answer

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

Question 6

What product is formed when the following molecule is treated with H2 and a Pd catalyst?

Accepted Answer

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

Question 7

Which compound could be oxidized to form the carboxylic acid below?

Accepted Answer

A) CH3(CH2)5CHO 
B)    
C)    
D)    
A) CH3(CH2)5CHO 
B)    
C)    
D)

Question 8

Which compound is an acetal?

Accepted Answer

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

Question 9

Vanillin,acetone,and formaldehyde are aldehydes.

Accepted Answer

A) True 
 B)False

Question 10

What hydrolysis products are formed when the acetal (CH3CH2CH2)2C(OCH2CH3)2 is treated with H2SO4 in H2O?

Accepted Answer

A) (CH3CH2CH2)2CHOCH2CH3 + CH3CH2OH 
B) (CH3CH2CH2)2CO + 2 CH3CH2OH 
C) (CH3CH2CH2)2CHOH + 2 CH3CH2OH 
D) CH2(OCH2CH3)2 + 2 CH3CH2CH3 
A) (CH3CH2CH2)2CHOCH2CH3 + CH3CH2OH 
B) (CH3CH2CH2)2CO + 2 CH3CH2OH 
C) (CH3CH2CH2)2CHOH + 2 CH3CH2OH 
D) CH2(OCH2CH3)2 + 2 CH3CH2CH3

Question 11

Which compound has the highest boiling point?

Accepted Answer

A) CH3(CH2)5CH3 
B) CH3(CH2)4CHO 
C) CH3(CH2)4CH2OH 
D) All of the compounds have the same boiling point. 
A) CH3(CH2)5CH3 
B) CH3(CH2)4CHO 
C) CH3(CH2)4CH2OH 
D) All of the compounds have the same boiling point.

Question 12

_____ is the simplest aldehyde.

Accepted Answer

Formaldehy

Question 13

Which compound has the greatest solubility in water?

Accepted Answer

A) CH3(CH2)5CHO 
B) CH3(CH2)4COCH2CH3 
C) CH3CH2CHO 
D) The compounds all are equally soluble in water. 
A) CH3(CH2)5CHO 
B) CH3(CH2)4COCH2CH3 
C) CH3CH2CHO 
D) The compounds all are equally soluble in water.

Question 14

The reaction below illustrates oxidation by Tollens reagent.

Accepted Answer

A) True 
 B)False

Question 15

(CH3)2CHCOCH3 has a lower boiling point than HOCH2CH2CH2CH2OH.

Accepted Answer

A) True 
 B)False

Question 16

The compound below is classified as what type of compound?

Accepted Answer

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

Question 17

Aldehydes and ketones have ________ (higher/lower)boiling points than alcohols,and ________ (higher/lower)boiling points than hydrocarbons of comparable size.

Accepted Answer

The answer of Aldehydes and ketones have ________ (higher/lower)boiling points...

Question 18

Which compound(s)would give a positive Tollens test?

Accepted Answer

A) Alcohols 
B) Aldehydes 
C) Ketones 
D) Carboxylic acids 
E) Alcohols and aldehydes 
A) Alcohols 
B) Aldehydes 
C) Ketones 
D) Carboxylic acids 
E) Alcohols and aldehydes

Question 19

What acetal is formed when the compound shown below is treated with two equivalents of ethanol (CH3CH2OH)in the presences of H2SO4?

Accepted Answer

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

Question 20

Deoxyribose is a building block of DNA. Which statement concerning the functional groups present in deoxyribose,shown below,is incorrect?

Accepted Answer

A) It contains an acetal. 
B) It contains an alcohol. 
C) It contains a hemiacetal. 
D) None of these choices are incorrect. 
A) It contains an acetal. 
B) It contains an alcohol. 
C) It contains a hemiacetal. 
D) None of these choices are incorrect.

Exam 16: Aldehydes and Ketones

When the compound shown is treated with H2 and a Pd catalyst,the indicated product is formed.

When the hemiacetal below reacts with ethanol,what acetal is formed?

The compound butanone does not need a number to specify the location of the carbonyl group on the carbon chain. Which statement best explains why?

What type of compound is shown below?

The reduction of acetaldehyde is an important biochemical reaction. Which of the following is the product of its reduction?

What product is formed when the following molecule is treated with H2 and a Pd catalyst?

Which compound could be oxidized to form the carboxylic acid below?

Which compound is an acetal?

Vanillin,acetone,and formaldehyde are aldehydes.

What hydrolysis products are formed when the acetal (CH3CH2CH2)2C(OCH2CH3)2 is treated with H2SO4 in H2O?

Which compound has the highest boiling point?

_____ is the simplest aldehyde.

Which compound has the greatest solubility in water?

The reaction below illustrates oxidation by Tollens reagent.

(CH3)2CHCOCH3 has a lower boiling point than HOCH2CH2CH2CH2OH.

The compound below is classified as what type of compound?

Aldehydes and ketones have ________ (higher/lower)boiling points than alcohols,and ________ (higher/lower)boiling points than hydrocarbons of comparable size.

Which compound(s)would give a positive Tollens test?

What acetal is formed when the compound shown below is treated with two equivalents of ethanol (CH3CH2OH)in the presences of H2SO4?

Deoxyribose is a building block of DNA. Which statement concerning the functional groups present in deoxyribose,shown below,is incorrect?

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

When the compound shown is treated with H₂ and a Pd catalyst,the indicated product is formed.

What product is formed when the following molecule is treated with H₂ and a Pd catalyst?

What hydrolysis products are formed when the acetal (CH₃CH₂CH₂)₂C(OCH₂CH₃)₂ is treated with H₂SO₄ in H₂O?

(CH₃)₂CHCOCH₃ has a lower boiling point than HOCH₂CH₂CH₂CH₂OH.

Aldehydes and ketones have (higher/lower)boiling points than alcohols,and (higher/lower)boiling points than hydrocarbons of comparable size.

What acetal is formed when the compound shown below is treated with two equivalents of ethanol (CH₃CH₂OH)in the presences of H₂SO₄?