Question 1

Provide the structure(s) of the expected major organic product(s) from the following reaction:

Accepted Answer

<img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30">_TB4454_00...

Question 2

Ozonolysis of one mole of the compound shown is expected to produce how many moles of CO2 upon completion of the reaction? 2 upon completion of the reaction?   A)  1 B)  2 C)  3 D)  4 E)  8" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   8

Question 3

Which of the following conditions effectively cleaves all three bonds of a carbon-carbon triple bond?

Accepted Answer

A)   HgSO4 and aqueous H2SO4
B)   1. Disiamylborane 2. H2O2, NaOH
C)   H2, Lindlar's catalyst
D)   1. O3 2. H2O
E)   Na, NH3(l)

Question 4

What is the IUPAC name for the molecule shown below?

Accepted Answer

A)   1,1-diethyl-2-pentyne
B)   3-(1-butynyl) pentane
C)   5-ethyl-3-octyne
D)   3-ethyl-4-heptyne
E)   5-ethyl-3-heptyne

Question 5

Draw all constitutional isomers of the molecular formula C6H10 that are terminal alkynes.

Accepted Answer

Question 6

Provide the IUPAC name for (CH3) 2CHC≡CCH2C(CH3) 3.

Accepted Answer

A)   1,1,5,5,5-pentamethyl-2-pentyne
B)   1,1,1,5,5-pentamethyl-3-pentyne
C)   2,2,6-trimethyl-4-heptyne
D)   2,6,6-trimethyl-3-heptyne
E)   tert-butylisopropylacetylene

Question 7

Reaction of 3,4,5-trimethyl-4-hexen-1-yne with H2 and Pd/C will produce which of the following compounds?

Accepted Answer

A)   2,3,4-trimethylhexane
B)   3,4,5-trimethylhexane
C)   2,3,4-trimethyl-1-hexene
D)   3,4,5-trimethyl-1-hexyne
E)   2,3,4-trimethyl-5-hexyne2

Question 8

Sodium amide (NaNH2, sodamide)  reacts with terminal alkynes as a ____.

Accepted Answer

A)   Brønsted acid
B)   Brønsted base
C)   reducing agent
D)   catalyst
E)   electrophile

Question 9

For the reaction shown below, select the expected major product.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 10

The C≡C bond of an alkyne is composed of which bond types?

Accepted Answer

A)   three anti-bonds
B)   three σ bonds
C)   two σ bonds and one π bond
D)   one σ bond and two π bonds
E)   three π bonds

Question 11

In an acid-catalyzed hydration, which of the following alkynes gives a single ketone?

Accepted Answer

A)   2-pentyne
B)   2-hexyne
C)   2-heptyne
D)   3-hexyne
E)   3-heptyne

Question 12

Which sequence of reagents would be expected to accomplish the synthesis shown? 2 B)  1. Br2, CCl4 2. 2 NaNH2 C)  1. Br2, H2O; 2. NaNH2 D)  1. HBr/ROOR; 2. excess NaNH2 E)  1. Na, NH3(l) " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   1. HBr; 2. 2 NaNH2
B)   1. Br2, CCl4 2. 2 NaNH2
C)   1. Br2, H2O; 2. NaNH2
D)   1. HBr/ROOR; 2. excess NaNH2
E)   1. Na, NH3(l)

Question 13

Which of the compounds listed would be one of the final major products for the following reaction sequence?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 14

Select the reagent(s)  expected to accomplish the reaction shown below. 2, Ni B)  H2, Ni2B C)  Na, NH3(l)  D)  A or B E)  B or C" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   H2, Ni
B)   H2, Ni2B
C)   Na, NH3(l) 
D)   A or B
E)   B or C

Question 15

Provide the IUPAC name for CH3CH(CH3)C(CH3)2C≡CCH(CH3)2.

Accepted Answer

2,5,5,6-tetramethyl-...

Question 16

Identify the functional group that would be expected to be found in the final product upon completion of the reaction between 1-hexyne and a mixture of mercuric sulfate and aqueous sulfuric acid.

Accepted Answer

A)   aldehyde
B)   ketone
C)   diol
D)   ether
E)   carboxylic acid

Question 17

What is the expected major organic product from the treatment of 4-methyl-2-pentyne with sodium metal in liquid ammonia?

Accepted Answer

(E)-4-meth...

Question 18

Which structure shown below represents (Z) -3,5-dichloro-3-hexen-1-yne?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   I and II are both correct

Question 19

For the reaction shown, select the expected major organic product.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 20

What is the major expected product(s)  of the reaction shown below?

Accepted Answer

A)   2,2-dichloropentane
B)   3,3-dichloropentane
C)   2,3-dichloropentane
D)   A and B
E)   B and C

Exam 9: Alkynes

Which of the following conditions effectively cleaves all three bonds of a carbon-carbon triple bond?

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Provide the IUPAC name for (CH3) 2CHC≡CCH2C(CH3) 3.

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Sodium amide (NaNH2, sodamide) reacts with terminal alkynes as a ____.

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Select the reagent(s) expected to accomplish the reaction shown below.

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What is the expected major organic product from the treatment of 4-methyl-2-pentyne with sodium metal in liquid ammonia?

Correct Answerverified(E)-4-meth...View AnswerShow Answer

What is the major expected product(s) of the reaction shown below?

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What is the IUPAC name for the molecule shown below?

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Which structure shown below represents (Z) -3,5-dichloro-3-hexen-1-yne?

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The C≡C bond of an alkyne is composed of which bond types?

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Ozonolysis of one mole of the compound shown is expected to produce how many moles of CO2 upon completion of the reaction?

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For the reaction shown below, select the expected major product.

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Provide the IUPAC name for CH3CH(CH3)C(CH3)2C≡CCH(CH3)2.

Correct Answerverified2,5,5,6-tetramethyl-...View AnswerShow Answer

Provide the structure(s) of the expected major organic product(s) from the following reaction:

Correct Answerverified_TB4454_00...View AnswerShow Answer

For the reaction shown, select the expected major organic product.

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Identify the functional group that would be expected to be found in the final product upon completion of the reaction between 1-hexyne and a mixture of mercuric sulfate and aqueous sulfuric acid.

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Which sequence of reagents would be expected to accomplish the synthesis shown?

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Draw all constitutional isomers of the molecular formula C6H10 that are terminal alkynes.

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Reaction of 3,4,5-trimethyl-4-hexen-1-yne with H2 and Pd/C will produce which of the following compounds?

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Which of the compounds listed would be one of the final major products for the following reaction sequence?

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In an acid-catalyzed hydration, which of the following alkynes gives a single ketone?

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Provide the IUPAC name for (CH₃) ₂CHC≡CCH₂C(CH₃) ₃.

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Sodium amide (NaNH₂, sodamide) reacts with terminal alkynes as a ____.

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(E)-4-meth...
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Ozonolysis of one mole of the compound shown is expected to produce how many moles of CO₂ upon completion of the reaction?

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Provide the IUPAC name for CH₃CH(CH₃)C(CH₃)₂C≡CCH(CH₃)₂.

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2,5,5,6-tetramethyl-...
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_TB4454_00...
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Draw all constitutional isomers of the molecular formula C₆H₁₀ that are terminal alkynes.

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Reaction of 3,4,5-trimethyl-4-hexen-1-yne with H₂and Pd/C will produce which of the following compounds?

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