Chemistry 2311- Chapter 10 Homework Problems

Chemistry 2311- Chapter 10 Homework Problems - c. a radical...

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Chemistry 2311 Chapter 10 Homework Problems Section I: Circle the number which corresponds to the answer to each of the following questions. There is only one correct answer for each question. 1. Which of the following bonds has the lowest bond dissociation enthalpy? a. C-H b. C-F c. C-Br d. C-I 2. 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° 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 3. What is the major organic product obtained from the following reaction? a. 1 b. 2 c. 3 d. 4 4. What is the characteristic of a radical chain propagation step? a. radicals are formed b. byproducts are formed
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Unformatted text preview: c. a radical reacts with a molecule to give a new radical and a new molecule d. two radicals combine to give a molecule 5. What type of reactive intermediate is formed upon irradiation of a solution of toluene (Ph-CH 3 ) and bromine? a. benzylic carbocation b. benzylic carbanion c. benzylic radical d. cyclic bromonium ion 6. Which of the following alkanes does not undergo monobromination to form a single bromoalkane as the major product? a. 1 b. 2 c. 3 d. 4 7. What is the correct order of stability of the following radicals (more stable > less stable)? a. 1 > 2 > 3 b. 1 > 3 > 2 c. 3 > 1 > 2 d. 3 > 2 > 1 Section II : Predict the products of the following reactions. Cl 2 , h CH 3 Br 2 , light CH 3 H 3 C CH 3 H Cl 2 , h H 3 C H 3 C CH 3 O 2 Section III : Write the mechanisms for the following reactions. 1) 2) Cl 2 , Cl H Br HBr ROOR...
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This note was uploaded on 06/19/2009 for the course CHEM 2311 taught by Professor Tyson during the Fall '07 term at Georgia Institute of Technology.

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Chemistry 2311- Chapter 10 Homework Problems - c. a radical...

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