Question 1

What is the IUPAC name for the following compound?

Accepted Answer

A)  3-bromobutanal
B)  2-bromobutanal
C)  3-bromobutanone
D)  2-bromobutanoneE) A) and B)
F) A) and C)

Question 2

​ Which of the following compounds, resulting from a reaction between an alcohol and an aldehyde, contains a carbon that has a hydrogen and two -OR groups attached and resembles diethers?

Accepted Answer

A)  Hemiacetal
B)  Acetal
C)  Hemiketal
D)  KetalE) None of the above
F) All of the above

Question 3

Predict the resultant compound class when an aldehyde is hydrogenated.

Accepted Answer

A)  hemiketal
B)  alcohol
C)  carboxylic acid
D)  no reactionE) A) and B)
F) A) and C)

Question 4

Hydrogenation of an aldehyde will produce?

Accepted Answer

A)  a carboxylic acid
B)  no reaction
C)  a primary alcohol
D)  an acetalE) A) and B)
F) B) and C)

Question 5

Another name for acetaldehyde is 2-propane.

Accepted Answer

A) True 
 B)False

Question 6

What is the major difference between a cyclic hemiacetal and a cyclic acetal?

Accepted Answer

A)  The cyclic hemiacetal is an alcohol, whereas the cyclic acetal is an ether.
B)  The cyclic hemiacetal is an acid, and the cyclic acetal is a base.
C)  The cyclic hemiacetal contains more carbons in the ring than the cyclic acetal.
D)  All of the responses are correct.E) A) and B)
F) B) and D)

Question 7

A positive Benedict's test is indicated by the formation of which of the following?

Accepted Answer

A)  Cu2O
B)  Cu
C)  Cu2+
D)  metallic mirrorE) B) and C)
F) C) and D)

Question 8

Which of the following properly ranks the relative aqueous solubility of each functional group?

Accepted Answer

A)  alkene 
B)  aldehyde 
C)  alkene 
D)  alkene < ketone < aldehyde < alcoholE) A) and C)
F) A) and B)

Question 9

To prepare a ketone, one should oxidize a secondary alcohol.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is a water soluble, organic solvent?

Accepted Answer

A)  vanilloids
B)  hemiacetals
C)  acetone
D)  diethyl etherE) A) and B)
F) B) and C)

Question 11

Hemiacetals are

Accepted Answer

A)  partial acetals that can be converted by a reduction reaction.
B)  unstable compounds that convert to acetals in the presence of an alcohol and an acid.
C)  semiacetals produced by alcohol subtraction from a ketone.
D)  There is more than one correct response.E) C) and D)
F) None of the above

Question 12

Acetals are prepared from ketones and alcohols.

Accepted Answer

A) True 
 B)False

Question 13

Oxidation of hemiketal will give a ketone and an alcohol.

Accepted Answer

A) True 
 B)False

Question 14

Overdose of ____ during pregnancy has proven to cause birth defects.

Accepted Answer

A)  Vitamin A
B)  Vitamin B6
C)  Vitamin C
D)  Vitamin DE) B) and D)
F) All of the above

Question 15

​ Compound X is combined with Tollen's reagent, which is reduced to metallic silver. The metallic silver precipitates and deposits on the walls of the glass container in which the reaction was carried out and forms a mirror. The compound X is a(n) _____.

Accepted Answer

A)  ether
B)  phenol
C)  ketone
D)  aldehydeE) B) and D)
F) All of the above

Question 16

Which of the following is a requirement of Tollens' reagent?

Accepted Answer

A)  The reaction must be run in a flask.
B)  The glassware should be grease-free.
C)  An air source must be present to dry the results before interpretation.
D)  The reaction must be run at the boiling point of the substance being tested.E) A) and D)
F) B) and C)

Question 17

Assuming that molecular weights are comparable, which of the following compounds would you expect to be the highest boiling?

Accepted Answer

A)  aldehyde
B)  alkene
C)  alcohol
D)  ketoneE) A) and B)
F) A) and C)

Question 18

It is not possible to produce either an aldehyde or ketone from a tertiary alcohol.

Accepted Answer

A) True 
 B)False

Question 19

The IUPAC name for formaldehyde is methanal.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following will react with Tollens' reagent?

Accepted Answer

A)   
B)   
C)   
D)   E) A) and D)
F) B) and D)

Exam 14: Aldehydes and Ketones

Overdose of ____ during pregnancy has proven to cause birth defects.

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Hemiacetals are

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Oxidation of hemiketal will give a ketone and an alcohol.

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A positive Benedict's test is indicated by the formation of which of the following?

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Which of the following is a requirement of Tollens' reagent?

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It is not possible to produce either an aldehyde or ketone from a tertiary alcohol.

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Which of the following properly ranks the relative aqueous solubility of each functional group?

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Predict the resultant compound class when an aldehyde is hydrogenated.

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​ Compound X is combined with Tollen's reagent, which is reduced to metallic silver. The metallic silver precipitates and deposits on the walls of the glass container in which the reaction was carried out and forms a mirror. The compound X is a(n) _____.

Correct AnswerverifiedShow Answer

The IUPAC name for formaldehyde is methanal.

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Acetals are prepared from ketones and alcohols.

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Which of the following will react with Tollens' reagent?

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Another name for acetaldehyde is 2-propane.

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Hydrogenation of an aldehyde will produce?

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To prepare a ketone, one should oxidize a secondary alcohol.

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​ Which of the following compounds, resulting from a reaction between an alcohol and an aldehyde, contains a carbon that has a hydrogen and two -OR groups attached and resembles diethers?

Correct AnswerverifiedShow Answer

Which of the following is a water soluble, organic solvent?

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Assuming that molecular weights are comparable, which of the following compounds would you expect to be the highest boiling?

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What is the IUPAC name for the following compound?

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What is the major difference between a cyclic hemiacetal and a cyclic acetal?

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Compound X is combined with Tollen's reagent, which is reduced to metallic silver. The metallic silver precipitates and deposits on the walls of the glass container in which the reaction was carried out and forms a mirror. The compound X is a(n) _____.

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Which of the following compounds, resulting from a reaction between an alcohol and an aldehyde, contains a carbon that has a hydrogen and two -OR groups attached and resembles diethers?

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