Question 1

Match the following.
-phosphorylation

Accepted Answer

A)  a molecule that contains one phosphate ester linkage and one phosphoric anhydride linkage
B)  a molecule that contains one phosphate ester linkage and two phosphoric anhydride linkages
C)  a polymer produced by reacting diamines with diacids or diacyl chlorides
D)  a functional group formed when two acid molecules give up one water molecule
E)  a functional group consisting of an amine group bonded to a carbonyl carbonF) the type of ester produced when phosphoric acid reacts with two molecules of alcoholG) a functional group consisting of a carbonyl carbon with a single bond to another oxygen; the remaining bonds are formed with R groupsH) the carbon atom bonded directly to the carbonyl carbon atomI) the type of ester produced when phosphoric acid reacts with three molecules of alcoholJ) The common name of this compound is acetic acid.K) the type of ester produced when phosphoric acid reacts with one molecule of alcoholL) the transfer of a phosphoryl group from one molecule to anotherM) The common name of this compound is formic acid.N) K) and M)
O) F) and K)

Question 2

Which carboxylic acid is used to prepare the ester shown? 3CH2COOH B) CH3COOH C) (CH3) 2CHCOOH D) (CH3) 2CHCH2COOH E) CH3 (C H2     COOH" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  CH3CH2COOH
B)  CH3COOH
C)  (CH3) 2CHCOOH
D)  (CH3) 2CHCH2COOH
E)  CH3 (C H2 3CH2COOH 
B)  CH3COOH 
C)  (CH3) 2CHCOOH 
D)  (CH3) 2CHCH2COOH 
E)  CH3 (C H2     COOH" class="answers-bank-image d-inline" rel="preload" >COOHF) C) and D)
G) B) and C)

Question 3

Which compound is a carboxylic acid?

Accepted Answer

A)  CH3COO-K+
B)  CH3COOH
C)  (CH3) 2CHOOCH3
D)  (CH3CO) 2O
E)  (CH3) 2OF) A) and D)
G) D) and E)

Question 4

An acyl group is a group in which

Accepted Answer

A)  an amine and a carbonyl are bonded to the same carbon atom.
B)  a hydroxyl and an alkene are bonded to the same carbon atom.
C)  an alpha carbon is bonded to an alkyl group.
D)  an alkyl group is bonded to a carbonyl carbon atom.
E)  an acidic group is bonded to an aromatic group.F) C) and E)
G) B) and D)

Question 5

Which of the following has the highest boiling point?

Accepted Answer

A)  ethane,CH3CH3
B)  dimethyl ketone,CH3COCH3
C)  ethyl alcohol,CH3CH2OH
D)  acetic acid,CH3COOH
E)  formaldehyde,HCHOF) B) and E)
G) B) and D)

Question 6

Which acid would be expected to have the highest boiling point?

Accepted Answer

A)  acetic
B)  benzoic
C)  formic
D)  oxalic
E)  stearicF) All of the above
G) A) and E)

Question 7

The potassium or sodium salt of a long chain carboxylic acid is called a

Accepted Answer

A)  soap.
B)  triglyceride.
C)  ester.
D)  emollient.
E)  none of the aboveF) A) and B)
G) All of the above

Question 8

The products of acid hydrolysis of an ester are

Accepted Answer

A)  another ester + water.
B)  alcohol + acid.
C)  alcohol + water.
D)  acid + water.
E)  salt + water.F) B) and C)
G) A) and B)

Question 9

What is the IUPAC name of the compound shown?

Accepted Answer

A)  3-hexanoic acid
B)  2-ethyl pentanoate
C)  2-ethylpentanoic acid
D)  3-heptanoic acid
E)  4-heptanoic acidF) B) and E)
G) C) and E)

Question 10

Match the following.
-alpha carbon

Accepted Answer

A)  a molecule that contains one phosphate ester linkage and one phosphoric anhydride linkage
B)  a molecule that contains one phosphate ester linkage and two phosphoric anhydride linkages
C)  a polymer produced by reacting diamines with diacids or diacyl chlorides
D)  a functional group formed when two acid molecules give up one water molecule
E)  a functional group consisting of an amine group bonded to a carbonyl carbonF) the type of ester produced when phosphoric acid reacts with two molecules of alcoholG) a functional group consisting of a carbonyl carbon with a single bond to another oxygen; the remaining bonds are formed with R groupsH) the carbon atom bonded directly to the carbonyl carbon atomI) the type of ester produced when phosphoric acid reacts with three molecules of alcoholJ) The common name of this compound is acetic acid.K) the type of ester produced when phosphoric acid reacts with one molecule of alcoholL) the transfer of a phosphoryl group from one molecule to anotherM) The common name of this compound is formic acid.N) H) and J)
O) A) and J)

Question 11

What is the IUPAC name of the molecule shown?

Accepted Answer

A)  diethanoic acid
B)  ethanedioc
C)  dibutanoic acid
D)  butanedioic acid
E)  pentanedioic acidF) B) and E)
G) B) and D)

Question 12

Which acid would be expected to have the lowest boiling point?

Accepted Answer

A)  acetic,CH3CO2H
B)  benzoic,C6H5CO2H
C)  formic,HCO2H
D)  oxalic, (CO2H) 2
E)  stearic,CH3(CH2) 16CO2HF) A) and B)
G) B) and E)

Question 13

Which of the following might be obtained as one of the products in this reaction?

Accepted Answer

A)  
B)  
C)  
D)  E) B) and D)
F) All of the above

Question 14

The common chemical name of aspirin is

Accepted Answer

A)  acetamide.
B)  acetylsalicylic acid.
C)  phenylalanyl aspartic acid.
D)  acetaminophen.
E)  lidocaine.F) C) and D)
G) B) and E)

Question 15

Which of the compounds shown can form hydrogen bonds with other identical molecules? Explain each case.

Accepted Answer

Molecules 2,4,and 5 can form hydrogen bo...

Question 16

This compound is

Accepted Answer

A)  an anhydride only.
B)  an ester only.
C)  both an ester and an anhydride.
D)  neither an ester nor an anhydride.
E)  phosphoric acid.F) C) and E)
G) A) and D)

Question 17

The functional groups in the aspirin molecule shown are

Accepted Answer

A)  aromatic,carboxylic acid.
B)  aromatic,ester.
C)  carboxylic acid,ester.
D)  aromatic,carboxylic acid,ester.
E)  amide,aromatic,carboxylic acid.F) None of the above
G) C) and D)

Question 18

Hydrolysis of the ester ethyl acetate produces

Accepted Answer

A)  ethanol and acetic acid.
B)  butanol.
C)  butanal and ethanol.
D)  ethanal and acetic acid.
E)  butanoic acid.F) A) and E)
G) C) and D)

Question 19

All of the statements about carboxylic acids are true except

Accepted Answer

A)  they undergo substitution reactions involving the -OH group.
B)  at low molecular weights they are liquids with sharp stinging odors.
C)  they form hydrogen bonds,causing their boiling points to be higher than expected on the basis of molecular weight.
D)  they react with bases to form salts which are often more soluble than the original acid.
E)  when they behave as acids,the -OH group is lost leaving the CO- ion.F) A) and B)
G) C) and D)

Question 20

Carboxylic acids generally taste ________.

Accepted Answer

A)  sour
B)  sweet
C)  bitter
D)  salty
E)  spicyF) A) and D)
G) A) and C)

Exam 17: Carboxylic Acids and Their Derivatives

Which of the following might be obtained as one of the products in this reaction?

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What is the IUPAC name of the molecule shown?

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Match the following. -phosphorylation

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What is the IUPAC name of the compound shown?

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Carboxylic acids generally taste ________.

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The products of acid hydrolysis of an ester are

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An acyl group is a group in which

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Which of the compounds shown can form hydrogen bonds with other identical molecules? Explain each case.

Correct AnswerverifiedMolecules 2,4,and 5 can form hydrogen bo...View AnswerShow Answer

Which acid would be expected to have the lowest boiling point?

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This compound is

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All of the statements about carboxylic acids are true except

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The common chemical name of aspirin is

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The potassium or sodium salt of a long chain carboxylic acid is called a

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Which compound is a carboxylic acid?

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The functional groups in the aspirin molecule shown are

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Match the following. -alpha carbon

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Hydrolysis of the ester ethyl acetate produces

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Which carboxylic acid is used to prepare the ester shown?

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Which acid would be expected to have the highest boiling point?

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Which of the following has the highest boiling point?

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Molecules 2,4,and 5 can form hydrogen bo...
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