11. Refer to instructions. The electrophile in this reaction is indicated by let

Question

11. Refer to instructions. The electrophile in this reaction is indicated by letter_ f o r n ltiple Choice tify the choice that best completes the statement or answers the question 13. Many nucleophilic addition reactions of aldehydes and ketones are catalyzed b hydration by a. making the carbonyl group more electrophilic b. shifting the equilibrium of the reaction c. making the carbonyl group less electrophilic d. converting the water to hydronium ion, a much better nucleophile Instructions: Consider the reaction below to answer the following question. O. C HCI +HOCH CH2OH + H20 14. Refer to instructions. The product of this reaction is called: an ylide a. b. an acetal a gem diol d. c. a hydrate The nucleophillic addition of water to an aldehyde or ketone a. is irreversible b. dependent on the structure of the carbonyl. c. favored by neutral conditions. d. produces a stable tetrahedral product. e. all of these. 15.

Explanation / Answer

13. d) converting the water to hydronium ion, a much better nucleophile.

Most reactions are catalysed by an acid or a base that changes water to hydronium ion which then adds to the ketone or aldehyde.

14. b) an acetal

Reaction of diol with a ketone gives cyclic acetal.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.