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Which of the following is an example of termination?


A) Which of the following is an example of termination? A) B) C) D) E)
B) Which of the following is an example of termination? A) B) C) D) E)
C) Which of the following is an example of termination? A) B) C) D) E)
D) Which of the following is an example of termination? A) B) C) D) E)
E) Which of the following is an example of termination? A) B) C) D) E)

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Which of the following is expected to be a major product for the reaction shown below? Which of the following is expected to be a major product for the reaction shown below? A) I B) II C) III D) IV


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

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Propose an efficient synthesis of 2-methylpropene from 2-methylpropane.

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Predict the product(s) of the following reaction: Predict the product(s) of the following reaction: A) I B) II C) III D) I, II E) I, II, III, IV


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

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Which term best describes the process shown below? Which term best describes the process shown below? A) initiation B) propagation C) termination D) elimination E) inhibition


A) initiation
B) propagation
C) termination
D) elimination
E) inhibition

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Azobisisobutyronitrile (AIBN) is commonly used as a radical initiator. Use correct arrow formalism to show this process. Azobisisobutyronitrile (AIBN) is commonly used as a radical initiator. Use correct arrow formalism to show this process.

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Predict the major product obtained upon radical bromination of t-butylcyclohexane.


A) 1-bromo-1-tert-butylcyclohexane
B) 2-bromo-1-tert-butylcyclohexane
C) 3-bromo-1-tert-butylcyclohexane
D) 4-bromo-1-tert-butylcyclohexane
E) (1-bromo-1,1-dimethyl) ethylcyclohexane

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Draw the major product(s) of the following reaction. Is the product optically active? Explain. Draw the major product(s) of the following reaction. Is the product optically active? Explain.

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blured image The product is not ...

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Draw the product of coupling of the following radicals. Draw the product of coupling of the following radicals.

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Predict the major product(s) of the following reaction: Predict the major product(s) of the following reaction: A) B) C) D)


A) Predict the major product(s) of the following reaction: A) B) C) D)
B) Predict the major product(s) of the following reaction: A) B) C) D)
C) Predict the major product(s) of the following reaction: A) B) C) D)
D) Predict the major product(s) of the following reaction: A) B) C) D)

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Predict the major product(s) of the following reaction. Predict the major product(s) of the following reaction.

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Which of the following would you expect to function as an initiator at the lowest temperature?


A) Which of the following would you expect to function as an initiator at the lowest temperature? A) B) Cl<sub>2</sub> C) D)

B) Cl2

C) Which of the following would you expect to function as an initiator at the lowest temperature? A) B) Cl<sub>2</sub> C) D)

D) Which of the following would you expect to function as an initiator at the lowest temperature? A) B) Cl<sub>2</sub> C) D)

Correct Answer

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Predict the major product(s) of the following reaction. Predict the major product(s) of the following reaction. A) I B) I and II C) I, II, and III D) I, II, III E) IV


A) I
B) I and II
C) I, II, and III
D) I, II, III
E) IV

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Which of the following correctly describes the nature of the transition state of the rate-determining step of the free-radical bromination of methane?


A) the transition state resembles the reactants more than the products
B) the transition state resembles the products more than the reactants
C) the transition state equally resembles products and reactants

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Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light?


A) Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light? A) B) C) D)
B) Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light? A) B) C) D)
C) Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light? A) B) C) D)
D) Which of the following shows the correct products initially formed (first step) when ozone absorbs ultraviolet light? A) B) C) D)

Correct Answer

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Which term most accurately describes the process shown below? Which term most accurately describes the process shown below? A) coupling B) elimination C) halogen abstraction D) hydrogen abstraction E) homolytic cleavage


A) coupling
B) elimination
C) halogen abstraction
D) hydrogen abstraction
E) homolytic cleavage

Correct Answer

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Which of the labeled C-H bonds is the weakest? Which of the labeled C-H bonds is the weakest? A) C-H<sub>a</sub> B) C-H<sub>b</sub> C) C-H<sub>c</sub> D) C-H<sub>d</sub> E) C-H<sub>e</sub>


A) C-Ha
B) C-Hb
C) C-Hc
D) C-Hd
E) C-He

Correct Answer

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Propose an efficient synthesis of 1-iodo-2-methylpropane from 2-methylpropene.

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Use correct arrow formalism to show the mechanism of the following radical process: Use correct arrow formalism to show the mechanism of the following radical process:

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Which of the following steps is thermodynamically unfavorable at all temperatures?


A) Which of the following steps is thermodynamically unfavorable at all temperatures? A) B) C) D)
B) Which of the following steps is thermodynamically unfavorable at all temperatures? A) B) C) D)
C) Which of the following steps is thermodynamically unfavorable at all temperatures? A) B) C) D)
D) Which of the following steps is thermodynamically unfavorable at all temperatures? A) B) C) D)

Correct Answer

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