identifying an unknown carbohydrates (tests for carbohydrates) What carbohydrates would give the following test results? a....
identifying an unknown carbohydrates (tests for
carbohydrates)
What carbohydrates would give the following test results? a. Produces a reddish-orange solid with Benedict's reagent and a red color with Seliwaanoff's reagent in 1 minute
Homework Answers
Solution:
The tests for carbohydrates are as follows.
Benedict test:
Benedict's test is used for the confirmation of mainly monosachharides and some disacharides
The redish-orange solid confirms the presence of monosachharides (glucose or fructose) having higher concentration of reducing sugar.
Seliwaanoff's.test:
When a monosacharide give blue-green product, then monosacharide is hexoses
A red color within one minute confirms the presence of ketose.
Thus the given carbohydrate will be fructose.
Add Answer to:
identifying an unknown carbohydrates (tests for
carbohydrates)
What carbohydrates would give the following test
results? a....
What Carbohydrates, other than Ketose, produce a reddish-orange solid with Benedict's reagent and a red color...
What Carbohydrates, other than Ketose, produce a reddish-orange solid with Benedict's reagent and a red color with Seliwanoff's reagent, and why? Why does starch produce no color change with Benedict's or Seliwanoff's reagent, but turns a blue-black color with Iodine reagent?
Q2 From the results in Part B, which carbohydrates are ketoses? Fructose Q3 From the results...
Q2 From the results in Part B, which carbohydrates are ketoses? Fructose Q3 From the results in Part C, which carbohydrates give a positive fermentation test? Q4 From the results in Part D, which carbohydrates give a blue-black color in the iodine test? Identifying an Unknown Carbohydrate Unknown No. X Carbohydrates Present Results with Unknown Blue Benedict's (A) Seliwanoff's (B) Fermentation (C) Times Nev - 12 BI er Red Bubble Iodine (D) Yellow What carbohydrate(s) is/are in your unknown? Sucrose...
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Report Sheet Carbohydrates Results of Carbohydrate Tests D. Benedict's Test E. Seliwano T Glucose e rmentation Test G. Todine Test Fructose Sucrose Lactose Starch Water Questions and Problems 0.6 From the results above, list the sugars that are reducing sugars and those that are not Reducing sugars Nonreducing sugars Q.7 What sugars are ketoses? Q.8 What sugars give a positive fermentation test? Q.9 Which carbohydrates give a blue-black color in the iodine test?
Tests for Carbohydrates F. Testing Foods for Carbohydrates Food Item Tested Benedict's test 070 S...
Tests for Carbohydrates F. Testing Foods for Carbohydrates Food Item Tested Benedict's test 070 Seliwanoff's test Iodine test Carbohydrates present 20 REPORT SHEET Tests for Carbohydrates Water Glucose Fructove Lactove Sucrose Stardh Takues Test Benedict's Test for Reducing Sugars A. 1. Observations 2. Reducing Nonreducing B. Seliwanoff's Test for Ketoses 1. Colors after 1 min 2. Ketose/Aldose C. Fermentation Test 1. Observations 2. Fermentation D. Iodine Test for Polysaccharides 1. Observationsa 2. Amylose (Yes/No) Questions and Problems 01 From the...
• 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.
please help me answer the following questions 33 DE CARBOHYDRATES THE Starch Carbohyd- rate class monosacchetides P...
please help me answer the following questions
33 DE CARBOHYDRATES THE Starch Carbohyd- rate class monosacchetides Precipitate PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Glucose Fructose Sucrose Benedict's Grick red Brick red negative negative test blues (blue) Fehling's Positive Positive Negativ test burnt orange brown l Tollens negative regate negative test clearish cleau clear Glucose oxidase test Iodine dark test blue negative | reaction mono saccharid sitive What class of carbohydrate can be expected to give...
Experiment 33 PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Sucrose Carbohyd- Starch...
Experiment 33 PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Sucrose Carbohyd- Starch Fructose Glucose rate class Benedict's test Fehling's test Tollens test Glucose oxidase test Iodine test What class of carbohydrate can be expected to give a positive test with the spot tests below? Benedict's glucose oxidase Fehling's iodine Tollens Hydrolysis of polysaccharides Test Results Results of Result from Benedict's test strips Solution Result from iodine test Initial starch Initial sucrose Initial cellulose Final starch Final...
organic chemistry help 7) A student was given unknown #1. It showed the following test results:...
organic chemistry help
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Alcohols, Aldehydes, and Ketones Report Sheet Q.5 Indicate the test results for each of the following compounds in the iodoform test and in the Benedict's test: lodoform Test Benedict's Test CH.CCH.CH CH,CH CH3CH2CCH,CH, 0 0 CH3CCH.CH Q.6 Two compounds, A and B have the formula of C3H,0. Determine their condensed structural formulas and names using the following test results. a. Compound A forms a red-orange precipitate with Benedict's reagent, but does not react with iodoform. b. Compound B forms a...
Problems and questions 1. Is the following disaccharide a reducing sugar? Explain. сн-Oн OH OH OH о CH2OH ОН OH Он...
Problems and questions 1. Is the following disaccharide a reducing sugar? Explain. сн-Oн OH OH OH о CH2OH ОН 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 Seliwanoff's test A yellow color with the iodine test Name the carbohydrate that you would expect to show these results. [Reminder: there is one more problem...
Q2 From the results in Part B, which carbohydrates are ketoses? Fructose Q3 From the results in Part C, which carbohydrates give a positive fermentation test? Q4 From the results in Part D, which carbohydrates give a blue-black color in the iodine test? Identifying an Unknown Carbohydrate Unknown No. X Carbohydrates Present Results with Unknown Blue Benedict's (A) Seliwanoff's (B) Fermentation (C) Times Nev - 12 BI er Red Bubble Iodine (D) Yellow What carbohydrate(s) is/are in your unknown? Sucrose...
Report Sheet Carbohydrates Results of Carbohydrate Tests D. Benedict's Test E. Seliwano T Glucose e rmentation Test G. Todine Test Fructose Sucrose Lactose Starch Water Questions and Problems 0.6 From the results above, list the sugars that are reducing sugars and those that are not Reducing sugars Nonreducing sugars Q.7 What sugars are ketoses? Q.8 What sugars give a positive fermentation test? Q.9 Which carbohydrates give a blue-black color in the iodine test?
Tests for Carbohydrates F. Testing Foods for Carbohydrates Food Item Tested Benedict's test 070 Seliwanoff's test Iodine test Carbohydrates present 20 REPORT SHEET Tests for Carbohydrates Water Glucose Fructove Lactove Sucrose Stardh Takues Test Benedict's Test for Reducing Sugars A. 1. Observations 2. Reducing Nonreducing B. Seliwanoff's Test for Ketoses 1. Colors after 1 min 2. Ketose/Aldose C. Fermentation Test 1. Observations 2. Fermentation D. Iodine Test for Polysaccharides 1. Observationsa 2. Amylose (Yes/No) Questions and Problems 01 From the...
• 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.
please help me answer the following questions
33 DE CARBOHYDRATES THE Starch Carbohyd- rate class monosacchetides Precipitate PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Glucose Fructose Sucrose Benedict's Grick red Brick red negative negative test blues (blue) Fehling's Positive Positive Negativ test burnt orange brown l Tollens negative regate negative test clearish cleau clear Glucose oxidase test Iodine dark test blue negative | reaction mono saccharid sitive What class of carbohydrate can be expected to give...
Experiment 33 PART B. SOME REACTIONS OF CARBOHYDRATES Spor Test Results with Carbohydrates Sucrose Carbohyd- Starch Fructose Glucose rate class Benedict's test Fehling's test Tollens test Glucose oxidase test Iodine test What class of carbohydrate can be expected to give a positive test with the spot tests below? Benedict's glucose oxidase Fehling's iodine Tollens Hydrolysis of polysaccharides Test Results Results of Result from Benedict's test strips Solution Result from iodine test Initial starch Initial sucrose Initial cellulose Final starch Final...
organic chemistry help
7) A student was given unknown #1. It showed the following test results: Molisch-clear to purple interface, lodine-lodide-red/brown persists, Barfoed - remains clear, Bial = clear to brown, Benedict - remains blue, Seliwanoff - clear to red. The unknown is: a) Starch b) Maltose c) Sucrose d) Fructose e) Glucose f) Xylose 8) A student was given unknown #11. It showed the following test results: Molisch=clear to purple interface, lodine-lodide=red/brown persists, Barfoed = remains clear, Bial =...
Alcohols, Aldehydes, and Ketones Report Sheet Q.5 Indicate the test results for each of the following compounds in the iodoform test and in the Benedict's test: lodoform Test Benedict's Test CH.CCH.CH CH,CH CH3CH2CCH,CH, 0 0 CH3CCH.CH Q.6 Two compounds, A and B have the formula of C3H,0. Determine their condensed structural formulas and names using the following test results. a. Compound A forms a red-orange precipitate with Benedict's reagent, but does not react with iodoform. b. Compound B forms a...
Problems and questions 1. Is the following disaccharide a reducing sugar? Explain. сн-Oн OH OH OH о CH2OH ОН 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 Seliwanoff's test A yellow color with the iodine test Name the carbohydrate that you would expect to show these results. [Reminder: there is one more problem...
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