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Q3. 2-Bromopentane, when treated with alcoholic KOH yields a mixture of three alkenes A, B and C. Identify A, B and C. Which is predominant?

Q3. 2-Bromopentane, when treated with alcoholic KOH yields a mixture of three alkenes A, B and C. Identify A, B and C. Which is predominant?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Q3. 2-Bromopentane, when treated with alcoholic KOH yields a mixture of three alkenes A, B and C. Identify A, B and C. Which is predominant? Q4 Which statement below about Sn1 reactions is incorrect? (A) Syl reactions are stepwise and have intermediates. (B) The slow step in a Sy1 reaction is formation of the carbocation intermediate. (C) Sx1 reactions have first order kinetics which means only the alkyl halide is involved in the rate limiting step. (D) The products of a Sy1 reaction will be a pair of enantiomers. (E) An aprotic solvent is best for Sn1 reactions as they tend to help stabilize carbocation intermediates. Q5 would you rank their likely order of formation from most likely to least likely? If the alkenes below were possible products of an elimination reaction, how R R R R R R R R II II IV V (А) І, V, IШ, П, IV (В) IV, II, П, І, V (С) V, I, I, П, IV (D) IV, I, Ш, І, V (E) II, П, І, V, IV
Transcribed Image Text:Q3. 2-Bromopentane, when treated with alcoholic KOH yields a mixture of three alkenes A, B and C. Identify A, B and C. Which is predominant? Q4 Which statement below about Sn1 reactions is incorrect? (A) Syl reactions are stepwise and have intermediates. (B) The slow step in a Sy1 reaction is formation of the carbocation intermediate. (C) Sx1 reactions have first order kinetics which means only the alkyl halide is involved in the rate limiting step. (D) The products of a Sy1 reaction will be a pair of enantiomers. (E) An aprotic solvent is best for Sn1 reactions as they tend to help stabilize carbocation intermediates. Q5 would you rank their likely order of formation from most likely to least likely? If the alkenes below were possible products of an elimination reaction, how R R R R R R R R II II IV V (А) І, V, IШ, П, IV (В) IV, II, П, І, V (С) V, I, I, П, IV (D) IV, I, Ш, І, V (E) II, П, І, V, IV
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