Question 1

For the reaction shown below,what is the IUPAC name of the expected product?

Accepted Answer

A)  2-methylhexane
B)  (Z) -2-methyl-4-hexene
C)  (
E)  -2-methyl-4-hexene
D)  (Z) -5-methyl-2-hexene
E)  (
E)  -5-methyl-2-hexene

Question 2

Which of the bases below would quantitatively deprotonate a terminal alkyne?

Accepted Answer

A)  BuLi
B)  NH3
C)  NaOH
D)  NaOCH2CH3
E)  t-BuOK

Question 3

For the reaction below,how many different organic products would be expected?

Accepted Answer

A)  one
B)  two
C)  three
D)  four
E)  five

Question 4

For the reaction shown,which of the compounds listed would be the expected enol intermediate?

Accepted Answer

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

Question 5

Which sequence of reagents would be expected to accomplish the transformation of 1-butyne shown below? 2O/H2SO4,HgSO4 cat. ;2) H2,Pt B) 1) HBr;2) H2,Pt;3) NaOH C) 1) H2,Lindlar catalyst;2) BH3•THF;3) H2O2,NaOH D) 1) HBr,peroxides;2) NaOH;3) H2,Pt E) 1) O3 2) H2O" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1) H2O/H2SO4,HgSO4 cat. ;2) H2,Pt
B)  1) HBr;2) H2,Pt;3) NaOH
C)  1) H2,Lindlar catalyst;2) BH3•THF;3) H2O2,NaOH
D)  1) HBr,peroxides;2) NaOH;3) H2,Pt
E)  1) O3 2) H2O

Question 6

Complete hydrogenation of a mixture of 1-octyne,2-octyne,and 3-octyne,in the presence of a palladium catalyst,would produce how many distinct eight-carbon hydrocarbon products?

Accepted Answer

A)  1
B)  2
C)  3
D)  6
E)  8

Question 7

Reduction of 1 mole of (3E,5Z) -3-methylhepta-3,5-dien-1-yne will require how many moles of hydrogen (H2) ?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5

Question 8

For the molecule below,known as 2-pentyne,which of the following describes the orbital overlap of the C2-C3 sigma bond? 2-sp2 C) sp3-sp3 D) p-p E) sp3-sp" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  sp-sp
B)  sp2-sp2
C)  sp3-sp3
D)  p-p
E)  sp3-sp

Question 9

Of the species listed below,select those less basic than acetylide?

Accepted Answer

A)  BuLi
B)  NaNH2
C)  NaOCH3
D)  both A and C
E)  both B and C

Question 10

Select the reagent(s) expected to accomplish the transformation shown below. 2,Ni B) H2,Ni2B C) H2,Lindlar's catalyst D) A and B E) B and C" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  H2,Ni
B)  H2,Ni2B
C)  H2,Lindlar's catalyst
D)  A and B
E)  B and C

Question 11

For the reaction shown,which of the compounds listed would be the expected major,and final,organic product?

Accepted Answer

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

Question 12

For the reaction shown,which of the compounds below would be the expected major organic product?

Accepted Answer

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

Question 13

For the reaction below,select the structure of the expected major organic product.

Accepted Answer

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

Question 14

What is the expected major organic product from treatment of 4-methyl-2-pentyne with excess hydrogen in the presence of a platinum catalyst?

Accepted Answer

A)  (
E)  -4-methyl-2-pentene
B)  (Z) -4-methyl-2-pentene
C)  2-methylpentane
D)  4-methylpentane
E)  Equal mixture of A and B

Question 15

What is the expected major organic product from treatment of 4-methyl-2-pentyne with hydrogen in the presence of Lindlar's catalyst?

Accepted Answer

A)  (
E)  -4-methyl-2-pentene
B)  (Z) -4-methyl-2-pentene
C)  (
E)  -2-methyl-2-pentene
D)  (Z) -2-methyl-2-pentene
E)  2-methylpentane

Question 16

What is the final major product expected for the following reaction sequence?

Accepted Answer

A)  (R) -3-Chlorohexane
B)  (S) -3-Chlorohexane
C)  meso-3,4-Dichlorohexane
D)  Racemic (2R,3R) and (2S,3S) -3,4-dichlorohexane
E)  2,3-Dichloro-3-hexene

Question 17

Which of the compounds listed would be a final major product for the following reaction sequence?

Accepted Answer

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

Question 18

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

Accepted Answer

The answer of Provide the structure(s)of the expected major organic...

Question 19

For the reaction shown,which of the compounds listed would be the expected major,and final,organic product?

Accepted Answer

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

Question 20

Which of the following is an acceptable structure for 2,5,5?trimethylhept?3?yne

Accepted Answer

A)  (CH3CH2) CH(CH3) C≡CCH2CH(CH3) 2
B)  (CH3CH2) C(CH3) 2C≡CCH(CH3) 2
C)  (CH3CH2) 2C(CH3) C≡CCH2CH3
D)  CH3CH2C(CH3) 2C≡CC(CH3) 3
E)  (CH3CH2CH2) CH(CH3) C≡CC(CH3) 3

Exam 10: Alkynes

Complete hydrogenation of a mixture of 1-octyne,2-octyne,and 3-octyne,in the presence of a palladium catalyst,would produce how many distinct eight-carbon hydrocarbon products?

Correct AnswerverifiedShow Answer

For the reaction below,how many different organic products would be expected?

Correct AnswerverifiedShow Answer

What is the final major product expected for the following reaction sequence?

Correct AnswerverifiedShow Answer

For the reaction shown,which of the compounds listed would be the expected enol intermediate?

Correct AnswerverifiedShow Answer

Which of the bases below would quantitatively deprotonate a terminal alkyne?

Correct AnswerverifiedShow Answer

What is the expected major organic product from treatment of 4-methyl-2-pentyne with hydrogen in the presence of Lindlar's catalyst?

Correct AnswerverifiedShow Answer

For the reaction below,select the structure of the expected major organic product.

Correct AnswerverifiedShow Answer

Which sequence of reagents would be expected to accomplish the transformation of 1-butyne shown below?

Correct AnswerverifiedShow Answer

For the reaction shown,which of the compounds listed would be the expected major,and final,organic product?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Of the species listed below,select those less basic than acetylide?

Correct AnswerverifiedShow Answer

Which of the following is an acceptable structure for 2,5,5?trimethylhept?3?yne

Correct AnswerverifiedShow Answer

What is the expected major organic product from treatment of 4-methyl-2-pentyne with excess hydrogen in the presence of a platinum catalyst?

Correct AnswerverifiedShow Answer

Which of the compounds listed would be a final major product for the following reaction sequence?

Correct AnswerverifiedShow Answer

For the reaction shown,which of the compounds below would be the expected major organic product?

Correct AnswerverifiedShow Answer

For the reaction shown below,what is the IUPAC name of the expected product?

Correct AnswerverifiedShow Answer

For the molecule below,known as 2-pentyne,which of the following describes the orbital overlap of the C2-C3 sigma bond?

Correct AnswerverifiedShow Answer

For the reaction shown,which of the compounds listed would be the expected major,and final,organic product?

Correct AnswerverifiedShow Answer

Reduction of 1 mole of (3E,5Z) -3-methylhepta-3,5-dien-1-yne will require how many moles of hydrogen (H2) ?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Reduction of 1 mole of (3E,5Z) -3-methylhepta-3,5-dien-1-yne will require how many moles of hydrogen (H₂) ?

Correct Answer
verified