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The tertiary carbon atom in the following structure is indicated by the letter_____. The tertiary carbon atom in the following structure is indicated by the letter_____.

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Which of the following structures is different from the other three? Which of the following structures is different from the other three? A) 1 B) 2 C) 3 D) 4


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

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

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound? A) trans-1-isopropyl-4-methylcyclopentane B) cis-1-tert-butyl-2-methylcyclopentane C) trans-1-tert-butyl-2-methylcyclopentane D) cis-1-isopropyl-2-methylcyclopentane


A) trans-1-isopropyl-4-methylcyclopentane
B) cis-1-tert-butyl-2-methylcyclopentane
C) trans-1-tert-butyl-2-methylcyclopentane
D) cis-1-isopropyl-2-methylcyclopentane

E) None of the above
F) B) and C)

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound?

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound? A) 2,4-dimethyl-3-isopropyl-pentane B) 3-isopropyl-1,5-dimethylpentane C) 3-isopropyl-2,4-dimethylpentane D) triisopropylmethane


A) 2,4-dimethyl-3-isopropyl-pentane
B) 3-isopropyl-1,5-dimethylpentane
C) 3-isopropyl-2,4-dimethylpentane
D) triisopropylmethane

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

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Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups?


A) 1,1-dimethylcyclohexane
B) cis-1,2-dimethylcyclohexane
C) trans-1,2-dimethylcyclohexane
D) cis-1,3-dimethylcyclohexane

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

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound? A) 2-ethyl-4-methylpentane B) 2,4-dimethylhexane C) 3,5-dimethylhexane D) 1,1,3-trimethylpentane


A) 2-ethyl-4-methylpentane
B) 2,4-dimethylhexane
C) 3,5-dimethylhexane
D) 1,1,3-trimethylpentane

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

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What is "X" in the following reaction? ? What is X in the following reaction? ? \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}\times\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} A) B) C) D) ⟶−H2 Catalyst \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}×\times⟶ Catalyst −3H2\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} What is X in the following reaction? ? \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}\times\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} A) B) C) D)


A)
What is X in the following reaction? ? \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}\times\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} A) B) C) D)
B)
What is X in the following reaction? ? \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}\times\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} A) B) C) D)
C)
What is X in the following reaction? ? \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}\times\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} A) B) C) D)
D)
What is X in the following reaction? ? \underset{\text { Catalyst }}{\stackrel{-\mathrm{H}_{2}}{\longrightarrow}}\times\underset{-3 \mathrm{H}_{2}}{\stackrel{\text { Catalyst }}{\longrightarrow}} A) B) C) D)

E) None of the above
F) All of the above

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound? A) 2-isopropyl-5-methylpentane B) 5-isopropyl-2-methylpentane C) 2,3,5-trimethylhexane D) 1,2-diisopropylpropane


A) 2-isopropyl-5-methylpentane
B) 5-isopropyl-2-methylpentane
C) 2,3,5-trimethylhexane
D) 1,2-diisopropylpropane

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

Correct Answer

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What is "X" in the following reaction? ? H3C−OH+CO⟶ Catalyst X\mathrm { H } _ { 3 } \mathrm { C } - \mathrm { OH } + \mathrm { CO } \stackrel { \text { Catalyst } } { \longrightarrow } \mathrm { X }


A)
\quad\quad\quad O
\quad\quad\quad ||
H3C−C−OH\mathrm{H}_{3} \mathrm{C}-\mathrm{C}-\mathrm{OH}
B)
HC≡CH\mathrm { HC } \equiv \mathrm { CH }
C)
\quad\quad\quad O
\quad\quad\quad ||
H3C−C−CH3\mathrm{H}_{3} \mathrm{C}-\mathrm{C}-\mathrm{CH}_{3}
D)
H3C−CH3\mathrm { H } _ { 3 } \mathrm { C } - \mathrm { CH } _ { 3 }

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

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Approximately how long is a C−C single bond of an alkane?


A) 111 pm
B) 134 pm
C) 142 pm
D) 153 pm

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

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Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. ​ -Conformation A is represented by Roman numeral ____. ​ Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. ​ -Conformation A is represented by Roman numeral ____. -Conformation A is represented by Roman numeral ____.

Correct Answer

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What is the IUPAC name of the following compound? What is the IUPAC name of the following compound? A) 3-propylpentane B) 1,1-diethylpropane C) 3-ethylhexane D) isooctane


A) 3-propylpentane
B) 1,1-diethylpropane
C) 3-ethylhexane
D) isooctane

E) A) and D)
F) None of the above

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Identify the constitutional isomer with the molecular formula C7H16. ​ Identify the constitutional isomer with the molecular formula C<sub>7</sub>H<sub>16</sub>. ​ A) Only I B) Only I and II C) Only II D) I, II, and III


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

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

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Which of the following structures represents trans-1,3-dimethylcyclohexane? Which of the following structures represents trans-1,3-dimethylcyclohexane? A) 1 B) 2 C) 3 D) 4


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

E) A) and D)
F) None of the above

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Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. ​ -Conformation C is represented by Roman numeral ____. ​ Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. ​ -Conformation C is represented by Roman numeral ____. -Conformation C is represented by Roman numeral ____.

Correct Answer

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How many moles of molecular oxygen (O2) are consumed in the complete combustion of one mole of hexane (C6H14) ?


A) 6
B) 9.5
C) 12.5
D) 14

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

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Provide a Newman projection of the most stable conformation of 3-methylpentane, CH3CH2CH(CH3)CH2CH3 looking along the C2-C3 bond.

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How many constitutional isomers are there with the molecular formula C6H14?


A) 3
B) 4
C) 5
D) 8

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

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What is the IUPAC name for the following compound? What is the IUPAC name for the following compound? A) cycloheptane B) bicyclo[3.2.0]heptane C) bicyclo[5.4]heptane D) cyclobutylcyclopentane


A) cycloheptane
B) bicyclo[3.2.0]heptane
C) bicyclo[5.4]heptane
D) cyclobutylcyclopentane

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

Correct Answer

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Showing 61 - 80 of 101

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