**Question 4:**Which of the following is NOT an intermediate in the mechanism for this hydrolysis?The reaction diagram shows a cyclic ether undergoing hydrolysis in the presence of hydronium ion ($H_3O^+$) and heat, resulting in a cyclic ketone. Below the reaction, there are five structures labeled A through E, representing possible intermediates in the reaction mechanism.**Structures:**- **A:** A cyclic structure with one oxygen atom, a positive charge on an external hydrogen, and a hydroxyl group attached. - **B:** A cyclic structure with a positively charged oxygen and a terminal alcohol group attached to the ring. - **C:** A cyclic structure with an additional hydroxyl group, a positively charged oxygen, and a longer alcohol chain attached. - **D:** A cyclic structure featuring a negatively charged oxygen, a positively charged oxygen, and a hydroxyl group. - **E:** A cyclic ketone with a positively charged external hydrogen.**Which one is NOT an intermediate in the mechanism?**- 1. A- 2. B- 3. C- 4. D- 5. E**Correct Answer:** 4. D **Question 5**Which of the following intermediates does NOT participate in the acetalization mechanism?Reaction:- Starting Material: A cyclic ketone- Reagent: Ethylene glycol- Catalyst: p-TsOH (para-toluenesulfonic acid), PhH (benzene), refluxPossible Intermediates:**A.** Structure: A cyclic molecule with a positively charged oxygen (oxonium ion) and an ethylene glycol group attached. There is also a negatively charged oxygen.**B.** Structure: A cyclic molecule with a positively charged oxygen (oxonium ion) directly attached to the ring.**C.** Structure: A cyclic molecule with an ethylene glycol group forming a diol, and a positively charged oxygen.**D.** Structure: A cyclic molecule with a positively charged ketone oxygen adjacent to an ethylene glycol group.**E.** Structure: A cyclic acetal structure with a protonated oxygen (oxonium ion).**Answer Choices:**1. A2. B3. C4. D5. EExplanation: Choose the intermediate that does not feature in the acetalization mechanism. The correct answer is highlighted as option 3, which corresponds to intermediate C.

Answered: QUESTION 4 Which of the following is…

QUESTION 4 Which of the following is NOT an intermediate in the mechanism for this hydrolysis? 1.A 2. B 3. C 04. D 5. E A H من B ОН H3O+, heat C OH H ОН OH E H

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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