Which of the following alcohols dehydrates with the fastest rate I. CH3 -ОН IV. CH СН3...
10. Which compound (I-IV) is a meso compound? CH2OH CH3 CH3 OH HO CH3 CH3 CH3 СНЗ он он IV A) I B) II C) III D) IV E) None of these choices.
18) How many signals would you expect to see in the 1H NMR spectrum of the following compound? 18) NI CH3CH2CH2CCH3 A) 6 B) 4 C)2 D) 5 E) 3 3 19) What splitting pattern is observed in the 1H NMR spectrum for the indicated hydrogens? OCH CH3 19) - D) quartet E) septet A) singlet B) doublet C) triplet 20) Which of the following alcohols dehydrates most rapidly? 1 -OH IV. CH3- 20) CH3- II. CH3 OH Cox HO...
What is the organic product? NaOC2H нос,H5 C2Hs он OC2Hs CH3 OC2Hs CH3 CH3 CH3 IV -OCH: CH3 CH3-CH- CH3 CH3 Select one O A. IV o C. I Classify the following compound: H OH но OCH2CH3 CH3 OH Select one: O A. Hemiacetal O B. Hemiketal O C. Acetal O D. Ketal
1) Which of the following is a secondary alcohol? A) CH3CH2-CH-CH2CH2CH3 CH2CH2CH2OH он - CH₂ CH3 CH2-CH-CH3 он CH2CH3 CH2CH2CH3 CH3CH2-C-CH2CH3 OH 2) The substance that precipitates in a positive Benedict test is: A) Cuo B) Cu2o C) Ag D) none of these 3) Galactose is called a(n): A) ketohexose B) aldopentose C) aldohexose D) ketopentose 4) Identify all the disaccharides from the following list: i) Lactose ii) Glucose iii) Ribose iv) Maltose A) iii B) iii + iv C)i...
I need some help to answer these following questions. Thanks. 41. Which molecule(s) is/are aromatic? I1 IV (A) I only (C) I, III, and IV (B) I and IV (D) I, II, III, and IV OH OH 42. Which Fischer projection represents this structure? HO OH OH H CHO CHO (A) H-OH (B) HOH HOH CH2OH CH2OH CHO HOH CHO но -н CH2OH CH2OH 43. Which is a product of this ozonolysis reaction? 1.03 2. (CH3)2S H O I BHs/THF...
please answer questions 1-4 Question 1 Which of the following is the most stable carbocation? СН3 V. CH2 What is the major product of the following reaction? Н HBO C CHS CH CH CH3-CH ( CH, Br CH2-CH-C–CH, Br Br CH CH CH3-CH:-¢-CH Br ін, CHE CH CH.-CH- Br CH. D Question 3 What is the major product of the following reaction? CH, НО 1 Оснок IV. CH2OH CH3 "О" ОН Д. он СН3 CH3 Но Ш. CH, ОН Question...
17. Which of the following aromatic compounds reacts the fastest in a halogenation reaction? CH3 A. B. C. D. 18. What would be the major product('s) of the following reaction? HSO,, heat o,N IV -19. Arrange the following compounds in order of decreasing reactivity in electrophilic substitution: a) V > II > I > III > Ⅳ b) 11 > V > 111 > 1 > rv c) IV>I> III> V>I d) 111 > 11 > 1 > IV >...
Consider the following molecules: b. а. CHS CH3 O NH— CH—CH2—ОН NH2-CH-C-OH CHз d. C. CHз о Но-СН—С—ОН НО—С—С—С—ОН CH3 [Select ] i. Which of the molecules above is a secondary amine? ii. Which of the molecules above will be a zwitterion under physiological conditions (pH 7)? (Select) [Select ] ii. Which of the molecules above has two acidic protons?
Thinking about oxidizing and reducing agents, what is the product for letter the "H" in this reaction? LiAlH4 н НО НО ОН он НО Which of the following is the correct order of reactivity, from fastest to slowest, toward acid- catalyzed dehydration alcohols? I. OH H,C CH₃ II. ÇHz (A) I>II> III (B) I>II>DI (C) II >> (D) III >I>11 (E) III >II>I ОН H_C CH, III. HC H, OH Choose the incorrect reaction in this scheme. (C) (B) (D)...
i need help plz with #5 with explanation thanks :) 126 Give the major product(s) for the reaction. 5. CH2OH Krtone 1. NaBH но CH:OH CH2OH CH20H CH20H CH2OH 2OH OH HO Ho OH OH H он OH CH2OHV CH20H CH2OH II OH CH20H Ryl II and IV D) IV and V A) 1 and II II and III 126 Give the major product(s) for the reaction. 5. CH2OH Krtone 1. NaBH но CH:OH CH2OH CH20H CH20H CH2OH 2OH OH...