Homework Answers
1. The disaccharide given is Lactose. Yes. Lactose is a reducing sugar as it can get oxidised to an acid.
2. The carbohydrate could be fructose as it gives positive results for all the tests.
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Problems and questions 1. Is the following disaccharide a reducing sugar? Explain. сн-Oн OH OH OH о CH2OH ОН OH Он...
• Is the following disaccharide a reducing sugar? Explain. CH OH OHO ОН СН,ОН OH OH...
• Is the following disaccharide a reducing sugar? Explain. CH OH OHO ОН СН,ОН OH OH ОН 2. The following test results were observed in a lab experiment: • A reddish-orange solid with the Benedict test • A reddish precipitate with the Barfoed's test • A red color within 1 minute with the Seliwanoffs test • A yellow color with the iodine test Name the carbohydrate that you would expect to show these results.
ne u ral features of car rots encruent, which of the following to distinguish reducing monosaccharides...
ne u ral features of car rots encruent, which of the following to distinguish reducing monosaccharides from reducing disaccharides? (a) Benedict's Test (c) Iodine Test (b) Molisch Test (d) Barfoed's Test for the m arketohexoses is indicated by 5. In the Seliwanoff's test, a positive what color? (a) purple (c) dark reddish brown (d) greenish-blue (b) red-orange 6. Vitamin C is also known as (a) sodium hydroxide (c) ascorbic acid (d) glucose (b) sulfuric acid 7. The oxidation of secondary...
Question 1 (1 point) Choose the reducing sugars (select all that apply): СН,ОН СН,ОН не —...
Question 1 (1 point) Choose the reducing sugars (select all that apply): СН,ОН СН,ОН не — о он н ОН НА // Н v H ОН НА у н н н ОН н ОН CH,OH 1 ОНОН а снион и онон н СН,ОН ОН —0, ОН ОН ОН CH2OH -о- слъ We were unable to transcribe this imageQuestion 2 (1 point) Monosaccharide B can be cat Сн,ОН н Дон ү0 р. Н ОН HOCH2 ОН HV СН,ОН В. Г ОН...
Please, fill in first table for Seliwanoff's Test for Ketoses. Additional info is found in the...
Please, fill in first table for Seliwanoff's Test for Ketoses.
Additional info is found in the images following table. (Second
table is info and image following).
Part C: Seliwanoff's Test for Ketoses Seliwanoff's Test Results Test Tube Sample Prediction Ketose? (Y/N) Observations Distilled water Peach / no change Glucose Peach to red slowly Fructose deep red solution very quickly Sucrose deep red solution quickly Lactose Peach to red slowly Starch Peach to red very slowly Mystery sample Peach to red...
2. Name the following alcoholis. ame: Cyclpentah Structure: Name: Structure: ОН CH, CH,CH,C- OH CH Name:...
2. Name the following alcoholis. ame: Cyclpentah Structure: Name: Structure: ОН CH, CH,CH,C- OH CH Name: Name: Structure: Structure: ОН Сн, он CH, -CH-CH2-CH, CH-CH, CH3 3. Write the product of the following oxidation reactions (if no reaction, write NR). CH, OH CH3-CH-CH, CH, CH-CH, +(0) — лон +(0) - Ketone CH, OH CH3 CH, CH, CH-CH-CH-CH, +(0) -OH + (0) 11-10 Experiment 11 Alcohols and Phenols Post-Lab Questions 1. Write the structures and classifications of the following alcohols: 2-bromo-3-pentanol...
TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14...
TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14 8 25 16 b) On graph paper plot y vs. x (appropriately labeling all axes as well as graphing the best fitting line/curve to the data points). c) Is the relationship between the y and x data pairs linear or non-linear? d) Is the relationship between the y and x data pairs direct or inverse? e) Which expression of k (k=y/x or k=xy) corresponds...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23,...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...
• Is the following disaccharide a reducing sugar? Explain. CH OH OHO ОН СН,ОН OH OH ОН 2. The following test results were observed in a lab experiment: • A reddish-orange solid with the Benedict test • A reddish precipitate with the Barfoed's test • A red color within 1 minute with the Seliwanoffs test • A yellow color with the iodine test Name the carbohydrate that you would expect to show these results.
ne u ral features of car rots encruent, which of the following to distinguish reducing monosaccharides from reducing disaccharides? (a) Benedict's Test (c) Iodine Test (b) Molisch Test (d) Barfoed's Test for the m arketohexoses is indicated by 5. In the Seliwanoff's test, a positive what color? (a) purple (c) dark reddish brown (d) greenish-blue (b) red-orange 6. Vitamin C is also known as (a) sodium hydroxide (c) ascorbic acid (d) glucose (b) sulfuric acid 7. The oxidation of secondary...
Question 1 (1 point) Choose the reducing sugars (select all that apply): СН,ОН СН,ОН не — о он н ОН НА // Н v H ОН НА у н н н ОН н ОН CH,OH 1 ОНОН а снион и онон н СН,ОН ОН —0, ОН ОН ОН CH2OH -о- слъ We were unable to transcribe this imageQuestion 2 (1 point) Monosaccharide B can be cat Сн,ОН н Дон ү0 р. Н ОН HOCH2 ОН HV СН,ОН В. Г ОН...
Please, fill in first table for Seliwanoff's Test for Ketoses.
Additional info is found in the images following table. (Second
table is info and image following).
Part C: Seliwanoff's Test for Ketoses Seliwanoff's Test Results Test Tube Sample Prediction Ketose? (Y/N) Observations Distilled water Peach / no change Glucose Peach to red slowly Fructose deep red solution very quickly Sucrose deep red solution quickly Lactose Peach to red slowly Starch Peach to red very slowly Mystery sample Peach to red...
2. Name the following alcoholis. ame: Cyclpentah Structure: Name: Structure: ОН CH, CH,CH,C- OH CH Name: Name: Structure: Structure: ОН Сн, он CH, -CH-CH2-CH, CH-CH, CH3 3. Write the product of the following oxidation reactions (if no reaction, write NR). CH, OH CH3-CH-CH, CH, CH-CH, +(0) — лон +(0) - Ketone CH, OH CH3 CH, CH, CH-CH-CH-CH, +(0) -OH + (0) 11-10 Experiment 11 Alcohols and Phenols Post-Lab Questions 1. Write the structures and classifications of the following alcohols: 2-bromo-3-pentanol...
TIL. PRE-LAB QUESTIONS - Experiment 8 1. a) Complete the table below. X1/ Xy/ 2 14 8 25 16 b) On graph paper plot y vs. x (appropriately labeling all axes as well as graphing the best fitting line/curve to the data points). c) Is the relationship between the y and x data pairs linear or non-linear? d) Is the relationship between the y and x data pairs direct or inverse? e) Which expression of k (k=y/x or k=xy) corresponds...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...
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