Homework Answers
Due to substitution reaction by alkane solution, alkane decolourises alkyl kmno4 but alkene does not.T therefore in the case of alkene, purpule color will retain during test.
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If you used a permanganate test to distinguish between an alkane and an alkene, which would...
If you use a permanganate test to distinguish between cyclohexanie and cyclohexene, in which would the...
If you use a permanganate test to distinguish between cyclohexanie and cyclohexene, in which would the purple color of KMNO4 persist? 11. Only one aldehyde and only one primary alcohol gives positive iodoform test. What are their structures? 12. Which of the following compounds would give a positive iodoform test? Yes/No Yes/No (a) Yes/No Yes/No (b)
10. If you use a permanganate test to distinguish between cyclohexane and cyclohexene, in which would...
10. If you use a permanganate test to distinguish between cyclohexane and cyclohexene, in which would the purple color of KMNO4 persist? 11. Only one aldehyde and only one primary alcohol gives positive iodoform test. What are their structures? 12. Which of the following compounds would give a positive iodoform test? i Yes/No Yes/No a) Yes/No (d) (b) Yes/No
Part 3: KMnO4 Test for Unsaturated Hydrocarbons Potassium Permanganate, KMnO4, is also often used to test...
Part 3: KMnO4 Test for Unsaturated Hydrocarbons Potassium Permanganate, KMnO4, is also often used to test for alkenes Alkenes react with KMnO4 to produce a compound with 2 hydroxyl groups (a diol) The color of KMnO4solution is purple. The color of the diol product is colorless. The color of the side product, MnO2, is brown Therefore, we can observe whether a reaction has occured by observing the color of the mixture: If the color after mixing stays purple, that means...
with bromne 2. Why is the reaction of ethere Called an additonal reaction? 3. If you...
with bromne 2. Why is the reaction of ethere Called an additonal reaction? 3. If you used a bromine test to distinguish between hexane and there are hexene in which would the red color or bromine Persist? distinguish would 4. If you used a permanganate test to between hexane and I hexene, in which the purple Color of knna perast? 5. or Draw the the Condensed Structrual formula of each. following. a. 2-methyl-1-pentene b. 3-methyl Cyclopentene
name the chemical test and state the expected result that could be used to distinguish between...
name the chemical test and state the expected result that could be
used to distinguish between the following pairs of organic
compounds
Name the chemical test and state the expected result (including color change where necessary) that could be used to distinguish between the following pairs of organic compounds. Name of Chemical Test Expected Results - noot you for Name of Chemical Test Name of Chemical Test Expected Results
C. Baeyer's reagent or Potassium Permanganate Test (KMnO.) Structural formula of product (if Hydrocarbon Observations reaction...
C. Baeyer's reagent or Potassium Permanganate Test (KMnO.) Structural formula of product (if Hydrocarbon Observations reaction occurs) Cyclohexane purple color of KMnO stays (C6H12) Cyclohexene (C.Hic) purple color of KMnO disappear and changes to brown precipitate at the bottom of test tube purple color of KMnO stays Toluenc (CH) Unknown B purple color of KMnO, disappear and changes to brown precipitate at the bottom of test tube D. Identification of Unknown compound Observations Unknown compound Saturated or Unsaturated? Combustion test...
actose otum 2) Barfoed's test is used to distinguish monosaccharides from dissacharides. Monosaccharides react with...
actose otum 2) Barfoed's test is used to distinguish monosaccharides from dissacharides. Monosaccharides react with the abdom copper-containing reagent to produce a red copper-containing precipitate. Which of these sugars do you predict will form a red precipitate? 3) Benedict's test can distinguish between reducing sugars and non-reducing sugars. Reducing sugars react with the reagent to produce a yellow, green, or red precipitate. Which sugar(s) used in this experiment do you predict will form a precipitate? 4) Seliwanoff's test distinguishes ketoses...
1. Potassium permanganate (KMnO4 ) is a commonly used oxidant in many redox titrations. In one...
1. Potassium permanganate (KMnO4 ) is a commonly used oxidant in many redox titrations. In one such titration, KMnO4 solution in a buret is added to a solution of oxalic acid in the Erlenmeyer flask. 2MnO4−(aq) + 5H2C2O4(aq) + 6H+(aq) → 2Mn2+(aq) + 10 CO2(g) + 8 H2O(l) Every component except permanganate (purple) is colorless. The end point of the reaction will be signaled by: a. The first appearance of the purple color in the solution being titrated b. The...
when the same student performs the potassium permanganate test on a new set of 4 samples...
when the same student performs the potassium permanganate test
on a new set of 4 samples as above in question 1, he gets a brown
color for hexane and a purpled color for 1-hexene. the toluene is
purple and the unknown is purple. was his experimental set up
correct? what must have happened ?
lab Questions: . Using condensed structure, 1-hexene. write the balanced chemical equation for bromination reaction 2. A student performs the bromin 1-hexene has cleared, the tol...
What test would you use to distinguish between the members of the following pairs of carbohydrates?...
What test would you use to distinguish between the members of the following pairs of carbohydrates? Describe chemistry and observations behind the tests you will use to distinguish between these pairs of carbohydrates. 1. Glycogen and Starch 2. Pentose (Arabinose) and Glucose 3. Sucrose and Lactose 4. Glucose and Fructose
If you use a permanganate test to distinguish between cyclohexanie and cyclohexene, in which would the purple color of KMNO4 persist? 11. Only one aldehyde and only one primary alcohol gives positive iodoform test. What are their structures? 12. Which of the following compounds would give a positive iodoform test? Yes/No Yes/No (a) Yes/No Yes/No (b)
10. If you use a permanganate test to distinguish between cyclohexane and cyclohexene, in which would the purple color of KMNO4 persist? 11. Only one aldehyde and only one primary alcohol gives positive iodoform test. What are their structures? 12. Which of the following compounds would give a positive iodoform test? i Yes/No Yes/No a) Yes/No (d) (b) Yes/No
with bromne 2. Why is the reaction of ethere Called an additonal reaction? 3. If you used a bromine test to distinguish between hexane and there are hexene in which would the red color or bromine Persist? distinguish would 4. If you used a permanganate test to between hexane and I hexene, in which the purple Color of knna perast? 5. or Draw the the Condensed Structrual formula of each. following. a. 2-methyl-1-pentene b. 3-methyl Cyclopentene
name the chemical test and state the expected result that could be
used to distinguish between the following pairs of organic
compounds
Name the chemical test and state the expected result (including color change where necessary) that could be used to distinguish between the following pairs of organic compounds. Name of Chemical Test Expected Results - noot you for Name of Chemical Test Name of Chemical Test Expected Results
C. Baeyer's reagent or Potassium Permanganate Test (KMnO.) Structural formula of product (if Hydrocarbon Observations reaction occurs) Cyclohexane purple color of KMnO stays (C6H12) Cyclohexene (C.Hic) purple color of KMnO disappear and changes to brown precipitate at the bottom of test tube purple color of KMnO stays Toluenc (CH) Unknown B purple color of KMnO, disappear and changes to brown precipitate at the bottom of test tube D. Identification of Unknown compound Observations Unknown compound Saturated or Unsaturated? Combustion test...
actose otum 2) Barfoed's test is used to distinguish monosaccharides from dissacharides. Monosaccharides react with the abdom copper-containing reagent to produce a red copper-containing precipitate. Which of these sugars do you predict will form a red precipitate? 3) Benedict's test can distinguish between reducing sugars and non-reducing sugars. Reducing sugars react with the reagent to produce a yellow, green, or red precipitate. Which sugar(s) used in this experiment do you predict will form a precipitate? 4) Seliwanoff's test distinguishes ketoses...
when the same student performs the potassium permanganate test
on a new set of 4 samples as above in question 1, he gets a brown
color for hexane and a purpled color for 1-hexene. the toluene is
purple and the unknown is purple. was his experimental set up
correct? what must have happened ?
lab Questions: . Using condensed structure, 1-hexene. write the balanced chemical equation for bromination reaction 2. A student performs the bromin 1-hexene has cleared, the tol...
What test would you use to distinguish between the members of the following pairs of carbohydrates? Describe chemistry and observations behind the tests you will use to distinguish between these pairs of carbohydrates. 1. Glycogen and Starch 2. Pentose (Arabinose) and Glucose 3. Sucrose and Lactose 4. Glucose and Fructose
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