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Radical inhibitors ____________.


A) prevent oxidation reactions
B) form less reactive radicals
C) destroy reactive radicals
D) include hydroquinones and vitamins A and E
E) do all of the above

F) C) and D)
G) A) and C)

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Rank the radicals in order from most stable to least stable. Rank the radicals in order from most stable to least stable. A) 1>2>3>4 B) 4>3>2>1 C) 3>4>2>1 D) 1>2>4>3 E) 4>2>3>1


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

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

Correct Answer

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Which compound will be the major product of the following radical Addition reaction? Which compound will be the major product of the following radical Addition reaction? A) B) C) D) E)


A) Which compound will be the major product of the following radical Addition reaction? A) B) C) D) E)
B) Which compound will be the major product of the following radical Addition reaction? A) B) C) D) E)
C) Which compound will be the major product of the following radical Addition reaction? A) B) C) D) E)
D) Which compound will be the major product of the following radical Addition reaction? A) B) C) D) E)
E) Which compound will be the major product of the following radical Addition reaction? A) B) C) D) E)

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

Correct Answer

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Which of the following radicals is the most stable?


A) Which of the following radicals is the most stable? A) B) C) D) E)
B) Which of the following radicals is the most stable? A) B) C) D) E)
C) Which of the following radicals is the most stable? A) B) C) D) E)
D) Which of the following radicals is the most stable? A) B) C) D) E)
E) Which of the following radicals is the most stable? A) B) C) D) E)

F) A) and E)
G) A) and B)

Correct Answer

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How many isomers are formed in the radical addition of HBr to 1-methylcyclohexene? How many isomers are formed in the radical addition of HBr to 1-methylcyclohexene? A) 1 B) 2 C) 3 D) 4 E) 6 Two new asymmetric centers are created in the product.


A) 1
B) 2
C) 3
D) 4
E) 6
Two new asymmetric centers are created in the product.

F) B) and D)
G) B) and E)

Correct Answer

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D

Calculate the percentage yield of the product below formed by radical bromination. [Relative reactivities: 1°(1) , 2°(82) , 3°(1600) ] Calculate the percentage yield of the product below formed by radical bromination. [Relative reactivities: 1°(1) , 2°(82) , 3°(1600) ] A) 5% B) 15% C) 29% D) 41% E) 71%


A) 5%
B) 15%
C) 29%
D) 41%
E) 71%

F) B) and D)
G) A) and B)

Correct Answer

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Which compound will give one product upon radical bromination using NBS, ROOR, and heat?


A) Which compound will give one product upon radical bromination using NBS, ROOR, and heat? A) B) C) D) E)
B) Which compound will give one product upon radical bromination using NBS, ROOR, and heat? A) B) C) D) E)
C) Which compound will give one product upon radical bromination using NBS, ROOR, and heat? A) B) C) D) E)
D) Which compound will give one product upon radical bromination using NBS, ROOR, and heat? A) B) C) D) E)
E) Which compound will give one product upon radical bromination using NBS, ROOR, and heat? A) B) C) D) E)

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

Correct Answer

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What is the first step in the radical halogenation of an alkane?


A) abstraction
B) initiation
C) propagation
D) combination
E) termination

F) A) and B)
G) A) and C)

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B

Of the following ethers, which would be least likely to form peroxides and hence be safer to use in a laboratory?


A) Of the following ethers, which would be least likely to form peroxides and hence be safer to use in a laboratory? A) B) C) D) E)
B) Of the following ethers, which would be least likely to form peroxides and hence be safer to use in a laboratory? A) B) C) D) E)
C) Of the following ethers, which would be least likely to form peroxides and hence be safer to use in a laboratory? A) B) C) D) E)
D) Of the following ethers, which would be least likely to form peroxides and hence be safer to use in a laboratory? A) B) C) D) E)
E) Of the following ethers, which would be least likely to form peroxides and hence be safer to use in a laboratory? A) B) C) D) E)

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

Correct Answer

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How many monobrominated constitutional isomers are possible for the following reaction? How many monobrominated constitutional isomers are possible for the following reaction? A) 2 B) 3 C) 4 D) 5 E) 6


A) 2
B) 3
C) 4
D) 5
E) 6

F) B) and E)
G) A) and B)

Correct Answer

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D

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