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15.Which of the following correctly explains why alkyl grooups are ortho/para-directing groups? a. Meta substitution results in an arenium ion in which a positive charge is destabilized by an adjacent electron-withdrawing group. b. Ortho/para substitution results in an arenium ion intermediale in which all atoms have complete octets. c. A lone pair of electrons on the alkyl group participates in re sonance and stabilizes the arenium ion intermediate in ortho/para substitution. d. The most stable resonance structure for the arenium ion intermediate in ortho/para substitution contains a 2° carbocation. e. The alkyl group is electron donating via induction and stabilizes the adjacent positive charge in the ortho/para substitution intermediate.

15.Which of the following correctly explains why alkyl grooups are ortho/para-directing groups? a. Meta substitution results in an arenium ion in which a positive charge is destabilized by an adjacent electron-withdrawing group. b. Ortho/para substitution results in an arenium ion intermediale in which all atoms have complete octets. c. A lone pair of electrons on the alkyl group participates in re sonance and stabilizes the arenium ion intermediate in ortho/para substitution. d. The most stable resonance structure for the arenium ion intermediate in ortho/para substitution contains a 2° carbocation. e. The alkyl group is electron donating via induction and stabilizes the adjacent positive charge in the ortho/para substitution intermediate.

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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15.Which of the following correctly explains why alkyl groups are ortho/para-directing groups? a. Meta substitution results in an arenium ion in which a positive charge is destabilized by an adjacent electron-withdrawing group. b. Ortho/para substitution results in an arenium ion intermediale in which all atoms have complete octets. c. A lone pair of electrons on the alkyl group participates in re sonance and stabilizes the arenium ion intermediate in ortho/para substitution. d. The most stable resonance structure for the arenium ion intermediate in ortho/para substitution contains a 2° carbocation. e. The alkyl group is electron donating via induction and stabilizes the adjacent positive charge in the ortho/para substitution intermediate. 5.
Transcribed Image Text:15.Which of the following correctly explains why alkyl groups are ortho/para-directing groups? a. Meta substitution results in an arenium ion in which a positive charge is destabilized by an adjacent electron-withdrawing group. b. Ortho/para substitution results in an arenium ion intermediale in which all atoms have complete octets. c. A lone pair of electrons on the alkyl group participates in re sonance and stabilizes the arenium ion intermediate in ortho/para substitution. d. The most stable resonance structure for the arenium ion intermediate in ortho/para substitution contains a 2° carbocation. e. The alkyl group is electron donating via induction and stabilizes the adjacent positive charge in the ortho/para substitution intermediate. 5.
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