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Circle the one correct answer for our pluvieill. (100) A. The reaction of an alkene with...
Question 17 (4 points) Which molecule is the strongest base? NH2 NC NH NH2 Question 18...
Question 17 (4 points) Which molecule is the strongest base? NH2 NC NH NH2 Question 18 (4 points) Classify the structure below by Configuration, Family, Backbone, and # of Chirality Centers: CH2OH HO -H H -OH H -OH CH OH D, hexose, ketose, 3 D, pentose, aldose 4 OL, hexose, ketose, 3 L, pentose, aldose, 4
I need some help to answer these following questions. Thanks. 41. Which molecule(s) is/are aromatic? I1...
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...
Circle the correct answers for the questions related to glucose: Which is the most abundant isomer...
Circle the correct answers for the questions related to
glucose:
Which is the most abundant isomer in water?
Which hydroxyl group on the
acyclic structure is involved in the cyclization?
b. C. HOH d. HOH e. CHO HO Ho HOH OH HHO OH OH H--OH H OH H OH H OH CH2OH
CH2OH HOCH OH H OH OH a HOTH OOH HOH V нон HOH Кно/ нон он...
CH2OH HOCH OH H OH OH a HOTH OOH HOH V нон HOH Кно/ нон он H- OH H -OH CHOH CH OH OH OH OH Questions 1-8 Sugar characterization. The Fischer and Haworth projections of gulose (left) and altrose (right) is shown above. Answer the following questions for these images 1. Which of the following chemical characterizations applies to gulose (left)? A) ketose B) aldose C) sucrose D) galactose 2. Which of the following chemical characterizations applies to gulose...
CHO H- Chemistry 421 Homework #9 Fall 14 Select the most corres How many stereoisomers of...
CHO H- Chemistry 421 Homework #9 Fall 14 Select the most corres How many stereoisomers of beta-D-glucopyranose exist (including itselt)? a. 4 b. 8 c. 16 d. 32 e. too many to consider cero Consider the following Fischer projections and answer the questions: CHO CHO CHO II -OH -ОН HOH H- OH HIO - -OH HO H -H HO H H- H -OH HO- -Η HO- OH н -он Н -он H- -ОН H- OH CHLOH CH OH Снон CHLOH...
CHM 211 STEREOCHEMISTRY Chapter 5 3. Hexane and 3-methylpentane are examples of: (a) Enantiomers (6) Constitutional...
CHM 211 STEREOCHEMISTRY Chapter 5 3. Hexane and 3-methylpentane are examples of: (a) Enantiomers (6) Constitutional isomers (c) Diasercomers (d) Conformers 4. Which of the following is a meso compound? CH CHE CH Htci (a) CH (b) " (d) WH+ CH.CH H- CH.CH Htc CH H 5. Which of the following is NOT true about enantiomer? (a) The have the same boiling point (b) The have the same melting poing (c) The have the same density (d) The have the...
12 Identify the compound showing following infrared spectrum. 15 Identify the reaction CH, OH sequence for...
12 Identify the compound showing following infrared spectrum. 15 Identify the reaction CH, OH sequence for the following transformation CH (A) (B) CH,CI KMnO4H CH,COCI LAIHE AICI AICI Br2 CH3COCI HOCH CH OH Mg FeBry AICI H30* other CHỊ0 Hyo (A) (B) ОН (C) (D) Mg. Å CHCOCI H90 ОН Br2 (C) FeBly ether AICI (D) CH,COCI BEZ Mg CH2OH,0" AICI, FeBryother A factor which explains the large difference in the - boiling point of OCH OH 13 following two...
Multiple Choice (5 points each, 30 points total). Circle the one BEST answer for each problem....
Multiple Choice (5 points each, 30 points total). Circle the one BEST answer for each problem. 1. Which of the following tertiary alcohols cannot be prepared using the reaction of an ester with excess (2 equivalents) Grignard reagent? . Which of the following esters undergoes hydrolysis in basic conditions (saponification) most readily? . Which compound will be essentially unreactive with excess 1-butanol in acid-catalyzed conditions (upon moderate heating if required)? . Which of the following is the best method for...
Chemistry help please 3 easy questions 3. Which are the correct configurations of the two chirality...
Chemistry help please 3 easy
questions
3. Which are the correct configurations of the two chirality centers (stereocenters) in the following Fischer projection? CHO H HO ОН H CH2OH A. 2R, 3R B. 2R, 3S C. 2S, 3R D. 2S, 3S 4. When a sugar was treated with warm nitric acid it gave an optically active compound. Wohl degradation of the same sugar gave L-glyceraldehyde. The structure of the sugar is CHO -ОН H HO H CHO HO -H HO...
please answer sll questions, i have to keep reposting due to partial answers 26-53 26-30. Determine...
please answer sll questions, i have to keep reposting due to
partial answers 26-53
26-30. Determine the relationship in the following pairs of compounds HC CH.CH CH, CH,CH2 CH2CH2CH3 A) same molecule B) structural isomers C) Enantiomers D) not related E) geometrical (cis/trans) isomers H CH₃CH₂ H CH₂ CHO OOH / CH2OH CH OH - HOH HOH HoH HOH HOH HOH H-OH HOH CH2OH CH OH 2 28. HD HO-C-H H-C-OH CH2OH 29 CH2OH 31-35. Match the number to the...
Question 17 (4 points) Which molecule is the strongest base? NH2 NC NH NH2 Question 18 (4 points) Classify the structure below by Configuration, Family, Backbone, and # of Chirality Centers: CH2OH HO -H H -OH H -OH CH OH D, hexose, ketose, 3 D, pentose, aldose 4 OL, hexose, ketose, 3 L, pentose, aldose, 4
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...
Circle the correct answers for the questions related to
glucose:
Which is the most abundant isomer in water?
Which hydroxyl group on the
acyclic structure is involved in the cyclization?
b. C. HOH d. HOH e. CHO HO Ho HOH OH HHO OH OH H--OH H OH H OH H OH CH2OH
CH2OH HOCH OH H OH OH a HOTH OOH HOH V нон HOH Кно/ нон он H- OH H -OH CHOH CH OH OH OH OH Questions 1-8 Sugar characterization. The Fischer and Haworth projections of gulose (left) and altrose (right) is shown above. Answer the following questions for these images 1. Which of the following chemical characterizations applies to gulose (left)? A) ketose B) aldose C) sucrose D) galactose 2. Which of the following chemical characterizations applies to gulose...
CHO H- Chemistry 421 Homework #9 Fall 14 Select the most corres How many stereoisomers of beta-D-glucopyranose exist (including itselt)? a. 4 b. 8 c. 16 d. 32 e. too many to consider cero Consider the following Fischer projections and answer the questions: CHO CHO CHO II -OH -ОН HOH H- OH HIO - -OH HO H -H HO H H- H -OH HO- -Η HO- OH н -он Н -он H- -ОН H- OH CHLOH CH OH Снон CHLOH...
CHM 211 STEREOCHEMISTRY Chapter 5 3. Hexane and 3-methylpentane are examples of: (a) Enantiomers (6) Constitutional isomers (c) Diasercomers (d) Conformers 4. Which of the following is a meso compound? CH CHE CH Htci (a) CH (b) " (d) WH+ CH.CH H- CH.CH Htc CH H 5. Which of the following is NOT true about enantiomer? (a) The have the same boiling point (b) The have the same melting poing (c) The have the same density (d) The have the...
12 Identify the compound showing following infrared spectrum. 15 Identify the reaction CH, OH sequence for the following transformation CH (A) (B) CH,CI KMnO4H CH,COCI LAIHE AICI AICI Br2 CH3COCI HOCH CH OH Mg FeBry AICI H30* other CHỊ0 Hyo (A) (B) ОН (C) (D) Mg. Å CHCOCI H90 ОН Br2 (C) FeBly ether AICI (D) CH,COCI BEZ Mg CH2OH,0" AICI, FeBryother A factor which explains the large difference in the - boiling point of OCH OH 13 following two...
Multiple Choice (5 points each, 30 points total). Circle the one BEST answer for each problem. 1. Which of the following tertiary alcohols cannot be prepared using the reaction of an ester with excess (2 equivalents) Grignard reagent? . Which of the following esters undergoes hydrolysis in basic conditions (saponification) most readily? . Which compound will be essentially unreactive with excess 1-butanol in acid-catalyzed conditions (upon moderate heating if required)? . Which of the following is the best method for...
Chemistry help please 3 easy
questions
3. Which are the correct configurations of the two chirality centers (stereocenters) in the following Fischer projection? CHO H HO ОН H CH2OH A. 2R, 3R B. 2R, 3S C. 2S, 3R D. 2S, 3S 4. When a sugar was treated with warm nitric acid it gave an optically active compound. Wohl degradation of the same sugar gave L-glyceraldehyde. The structure of the sugar is CHO -ОН H HO H CHO HO -H HO...
please answer sll questions, i have to keep reposting due to
partial answers 26-53
26-30. Determine the relationship in the following pairs of compounds HC CH.CH CH, CH,CH2 CH2CH2CH3 A) same molecule B) structural isomers C) Enantiomers D) not related E) geometrical (cis/trans) isomers H CH₃CH₂ H CH₂ CHO OOH / CH2OH CH OH - HOH HOH HoH HOH HOH HOH H-OH HOH CH2OH CH OH 2 28. HD HO-C-H H-C-OH CH2OH 29 CH2OH 31-35. Match the number to the...
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