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Consider the conformations of 2-methylbutane shown below to answer the following question(s). A Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures has two gauche interactions? B Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures has two gauche interactions? C Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures has two gauche interactions? D Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures has two gauche interactions? a.​A b.​B c.​C d.​D -Which of the structures has two gauche interactions?

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To which functional group classification does the following molecule belong? To which functional group classification does the following molecule belong? A) ester B) ketone C) alcohol D) carboxylic acid E) both b and c


A) ester
B) ketone
C) alcohol
D) carboxylic acid
E) both b and c

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Consider the conformations of 2-methylbutane shown below to answer the following question(s). A Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures represents the most stable conformation of 2-methylbutane? B Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures represents the most stable conformation of 2-methylbutane? C Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures represents the most stable conformation of 2-methylbutane? D Consider the conformations of 2-methylbutane shown below to answer the following question(s). A B C D a.​A b.​B c.​C d.​D -Which of the structures represents the most stable conformation of 2-methylbutane? a.​A b.​B c.​C d.​D -Which of the structures represents the most stable conformation of 2-methylbutane?

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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. A B C D -Refer to instructions. Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram, respectively. A Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram, respectively. B Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram, respectively. C Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram, respectively. D Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram, respectively. -Refer to instructions. Conformations B and C are represented by the Roman numerals _____ and _____ in the diagram, respectively.

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If ethane reacts with a large excess of chlorine over a long period of time, the most likely major product of the reaction would be:


A) CCl3CCl3
B) CH3CH3
C) CH2ClCH2Cl
D) CH2ClCH3
E) Ethane does not react with the halogens.

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The most stable conformation of an alkane occurs when


A) carbon−carbon bonds are staggered and bulky groups are gauche.
B) carbon−carbon bonds are staggered and bulky groups are anti.
C) carbon−carbon bonds are eclipsed and bulky groups are gauche.
D) carbon−carbon bonds are eclipsed and bulky groups are anti.

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Experiments have shown that for 1,2-dichloroethane, ClCH2CH2Cl, in tetrachloromethane solution at 25° C, 70% of the molecules are in the anti and 30% are in the gauche conformation. Use this information to answer the following question(s). -Refer to instructions. Draw a Newman projection of the highest energy eclipsed conformation of 1,2-dichloroethane.

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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. A B C D -Refer to instructions. Conformations A and D are represented by the Roman numerals _____ and _____ in the diagram, respectively. A Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations A and D are represented by the Roman numerals _____ and _____ in the diagram, respectively. B Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations A and D are represented by the Roman numerals _____ and _____ in the diagram, respectively. C Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations A and D are represented by the Roman numerals _____ and _____ in the diagram, respectively. D Match the Newman projection for the conformation of 2-methylbutane to the indicated position on the potential energy diagram. A B C D -Refer to instructions. Conformations A and D are represented by the Roman numerals _____ and _____ in the diagram, respectively. -Refer to instructions. Conformations A and D are represented by the Roman numerals _____ and _____ in the diagram, respectively.

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4-ethyl-3,3,4-trimethylheptane could be classified as:


A) an alkane
B) saturated
C) aliphatic
D) a paraffin
E) all of these

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Provide a proper IUPAC name for the compound given below. Provide a proper IUPAC name for the compound given below.

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3-methyl-5-isopropyl...

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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

Correct Answer

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Choose a correct IUPAC name for: Choose a correct IUPAC name for: A) 3-methyl-l-tert-butylhexane B) 5-methyloctane C) 2,5-dimethylheptane D) 4,7,7-trimethyloctane E) none of these


A) 3-methyl-l-tert-butylhexane
B) 5-methyloctane
C) 2,5-dimethylheptane
D) 4,7,7-trimethyloctane
E) none of these

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