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What is the major product of the following reaction? What is the major product of the following reaction? A) I B) II C) III D) IV


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

Correct Answer

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Give the IUPAC name for the following compound. Give the IUPAC name for the following compound. A) 4-Chloro-4-methyl-2-heptyne B) 3-Chloro-3-methyl-4-heptyne C) 3-Chloro-3-methyl-4-hexyne D) 4-Chloro-4-methyl-2-hexyne


A) 4-Chloro-4-methyl-2-heptyne
B) 3-Chloro-3-methyl-4-heptyne
C) 3-Chloro-3-methyl-4-hexyne
D) 4-Chloro-4-methyl-2-hexyne

Correct Answer

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What is the product of the following reaction? What is the product of the following reaction? A) I B) II C) III D) IV


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

Correct Answer

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Give the IUPAC name for the following compound. Give the IUPAC name for the following compound. A) 4-Methyl-4-penten-1-yne B) 2-Methyl-2-hexen-5-yne C) 5-Methyl-4-hexen-1-yne D) 2-Methyl-2-penten-4-yne


A) 4-Methyl-4-penten-1-yne
B) 2-Methyl-2-hexen-5-yne
C) 5-Methyl-4-hexen-1-yne
D) 2-Methyl-2-penten-4-yne

Correct Answer

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What is the reagent required to accomplish the following transformation? What is the reagent required to accomplish the following transformation? A) SOCl<sub>2</sub> B) 2eq.HCl C) Cl<sub>2</sub> D) Br<sub>2</sub>/CCl<sub>4</sub>


A) SOCl2
B) 2eq.HCl
C) Cl2
D) Br2/CCl4

Correct Answer

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Which of the following alkynes is a symmetrical alkyne? Which of the following alkynes is a symmetrical alkyne? A) I B) II C) III D) IV


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

Correct Answer

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What is the major product of the following reaction? What is the major product of the following reaction? A) Only I B) Only II C) Only III D) I,II,and III


A) Only I
B) Only II
C) Only III
D) I,II,and III

Correct Answer

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Rank the following compounds in order of decreasing basicity,putting the most basic first. Rank the following compounds in order of decreasing basicity,putting the most basic first. A) I > II > III B) III > II > I C) III > I > II D) II > III > I


A) I > II > III
B) III > II > I
C) III > I > II
D) II > III > I

Correct Answer

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Give the IUPAC name for the following compound. Give the IUPAC name for the following compound. A) 6,6-Dimethyl-3-octyne B) 3,3-Dimethyl-3-octyne C) 3,3-Dimethy-5-octyne D) 6-Ethyl-6-methyl-3-heptyne


A) 6,6-Dimethyl-3-octyne
B) 3,3-Dimethyl-3-octyne
C) 3,3-Dimethy-5-octyne
D) 6-Ethyl-6-methyl-3-heptyne

Correct Answer

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What is the major organic product of the following reaction? What is the major organic product of the following reaction? A) I B) II C) III D) IV


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

Correct Answer

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What is (are) the product(s) of the following reaction? What is (are) the product(s) of the following reaction? A) Only I B) Only II C) Only III D) I,II,and III


A) Only I
B) Only II
C) Only III
D) I,II,and III

Correct Answer

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Give the IUPAC name for the following compound. Give the IUPAC name for the following compound. A) R-4-bromo-1-pentyne B) S-4-bromo-1-pentyne C) R-3-bromo-5-pentyne D) S-3-bromo-5-pentyne


A) R-4-bromo-1-pentyne
B) S-4-bromo-1-pentyne
C) R-3-bromo-5-pentyne
D) S-3-bromo-5-pentyne

Correct Answer

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In the addition of HBr to 1-butyne,the nucleophile in the first step of the mechanism is


A) the Csp-H1s bond of 1-butyne.
B) the C-C triple bond of 1-butyne.
C) the H atom in HBr.
D) the Br ion.

Correct Answer

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Which of the following statements about the reactions of alkynes is not true?


A) Alkynes contain easily broken p bonds.
B) Alkynes undergo addition reactions.
C) When alkynes undergo two sequential addition reactions,four new s bonds are formed.
D) When alkynes undergo two sequential addition reactions,two new s bonds and a p bond are formed.

Correct Answer

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Which of the following compounds can be an enol tautomer of 1,3-cyclohexandione? Which of the following compounds can be an enol tautomer of 1,3-cyclohexandione? A) Only I and II B) Only I and III C) Only II and III D) I,II,and III


A) Only I and II
B) Only I and III
C) Only II and III
D) I,II,and III

Correct Answer

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How many degrees of unsaturation are introduced by a triple bond?


A) 0
B) 1
C) 2
D) 3

Correct Answer

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Which of the indicated hydrogen in the following compounds is the least acidic? Which of the indicated hydrogen in the following compounds is the least acidic? A) I B) II C) III D) IV


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

Correct Answer

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What is the major product of the following reaction? What is the major product of the following reaction? A) I B) II C) III D) IV


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

Correct Answer

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What is (are) the major organic product(s) of the following reaction? What is (are) the major organic product(s) of the following reaction? A) Only I and II B) Only II and III C) Only I and III D) I,II,and III


A) Only I and II
B) Only II and III
C) Only I and III
D) I,II,and III

Correct Answer

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Which of the following about the physical properties of alkynes is not true?


A) Alkynes have low melting and boiling points.
B) Melting and boiling points increase as the number of carbons increases.
C) Alkynes are soluble in organic solvents.
D) Alkynes are soluble in water.

Correct Answer

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