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What is the characteristic of a radical chain termination step?


A) radicals are formed
B) substitution products are formed
C) a radical reacts with a molecule to give a new radical and a new molecule
D) two radicals combine to give a molecule

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

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Which of the following has the list of compounds in the correct order of decreasing polarity (more polar > less polar) ?


A) CCl4 > CHCl3 > CH2Cl2
B) CH2Cl2 > CHCl3 > CCl4
C) CCl4 > CH2Cl2 > CHCl3
D) CHCl3 > CCl4 > CH2Cl2

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

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Which of the following has the list of compounds in the correct order of decreasing density (higher density > lower density) ?


A) CH2Cl2 > CH2Br2 > CH2I2
B) CH2Cl2 > CH2I2 > CH2Br2
C) CH2I2 > CH2Br2 > CH2Cl2
D) CH2I2 > CH2Cl2 > CH2Br2

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

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Which of the following statements is not true regarding the halogenation of alkanes upon treatment with halogen and light?


A) bromination is more selective for 3 °\degree positions than chlorination
B) the reaction proceeds via a radical intermediate
C) the reaction proceeds via a chain reaction
D) this is a useful process for the formation of fluorides, chlorides, bromides and iodides

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

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What is the structure of the key intermediate in the following reaction? What is the structure of the key intermediate in the following reaction?

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Which of the following accounts for the anti-Markovnikov regiochemistry of the reaction of an alkene with HBr in the presence of peroxides?


A) the alkene reacts with HBr to give a carbocation
B) the alkene reacts with a bromine atom to give a radical
C) the alkene reacts with a hydrogen atom to give a radical
D) the alkene reacts with peroxide to five an allylic radical

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

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What is the major organic product obtained from the following reaction? What is the major organic product obtained from the following reaction?

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Provide the IUPAC name of the following compound (shown as a Fischer projection). Provide the IUPAC name of the following compound (shown as a Fischer projection).

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Provide the IUPAC name of the following compound. Provide the IUPAC name of the following compound.

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(S)-2-chlo...

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What is the major product of autooxidation of cyclohexene? What is the major product of autooxidation of cyclohexene? A) 1 B) 2 C) 3 D) 4


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

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

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What is the major organic product obtained from the following reaction? What is the major organic product obtained from the following reaction? A) 1 B) 2 C) 3 D) 4


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

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

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What is the major organic product obtained from the following reaction? What is the major organic product obtained from the following reaction?

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Which of the following statements is not true?


A) homolytic cleavage of a bond in a neutral molecule gives two radicals
B) radicals have one or more unpaired electrons
C) movement of single electrons is depicted using a "fishhook arrow"
D) the C-F bond is the weakest bond between carbon atom and a halogen

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

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What is the major organic product obtained from the following reaction? What is the major organic product obtained from the following reaction? A) 1 B) 2 C) 3 D) 4


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

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

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What is the major organic product obtained from the following reaction? What is the major organic product obtained from the following reaction? A) 1 B) 2 C) 3 D) 4


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

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

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What type of reactive intermediate is formed in the reaction of propene with N-bromosuccinimide to give 3-bromo-1-propene?


A) allylic carbocation
B) allylic carbanion
C) allylic radical
D) cyclic bromonium ion

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

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Which of the following has the list of compounds in the correct order of decreasing molecular polar (more polar > less polar) ?


A) CH3I > CH3Br > CH3Cl > CH3F
B) CH3F > CH3Cl > CH3Br > CH3I
C) CH3Cl > CH3F > CH3Br > CH3I
D) CH3Cl > CH3I > CH3F > CH3Cl

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

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What is the structure of all of the monobrominated products, including regioismers and stereoisomers, obtained from the following reaction? What is the structure of all of the monobrominated products, including regioismers and stereoisomers, obtained from the following reaction?

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