The colour change for the test reaction of an alkene with KMNO4 is from: A. Purple to black/brown O B. Purple to orange O C. Orange to purple O D. Orange to black/brown O E. Purple to yellow
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- The components of poison ivy and poison oak that produce the characteristic itchy rash are catechols substituted with long-chain alkylgroups. If you were exposed to poison ivy, which of the treatments below would you apply to the affected area? Justify your choice.(a) Wash the area with cold water.(b) Wash the area with dilute vinegar or lemon juice.(c) Wash the area with soap and water.(d) Wash the area with soap, water, and baking soda (sodium bicarbonate).Name at least two alternative chemical tests that can be performed to characterize functional groups/hydrocarbons in an unknown sample (aside from Nitration test, Bromine test, and basic oxidation reaction test.)Give the reagent or chemical test that would differentiate the following pairs of compounds. Write chemical equations for the reactions. List of Chemical Tests (choose here)I. Halogenation: Bromination with and without lightII. Oxidation: Reaction with Baeyer’s reagent III. Reaction with Ammoniacal Silver Nitrate (AgNO3) or simply Tollen’s reagent a. benzene and ethylbenzeneb. 1-butyne and 2-butynec. 2-methylpentane and 2-methyl-2-pentened. toluene and 1-methylcyclohexene
- In the preparation of aspirin, You can do the functional group test to ensure the completion of the reaction. (a) What is the name of reagent used? (b) What is your observation if any unreacted starting material is present? (c) What is the name of the functional group responsible for this reaction?draw the alkane strucutre based off the IR spectrum, 1H NMR spectrum, and 13C NMR spectrum for this compound.Which of the following reagents can be used in the reaction in the photo? A.) pyridinium chlorochromate B.) potassium permanganate C.) sodium dichromate with sulfuric acid D.) potassium chromate with sulfuric acid
- If the dehydration reaction of an alcohol is successful, what changes would be seen in the IR spectrum for the product compared to the starting materialDefine the following terms: a. alkylating agents b. base analogue c. nonalkylating agent d. intercalating agent e. ethidium bromideIn the electrolysis of aqueous sodium bromide, there are two possible anodic reactions: *2H2O(l) ——-> 02(g) + 4H+(aq) + 4e–, E° = 1.23V2Br–(aq) ——–> Br2(g) + 2e-2, E° = 1.08 VWhich reaction occurs at anode and why?
- The compounds 1-hexanol, 3-methyl-3-pentanol, hexanal, and 2-hexanone, and were used using different tests. Shown below is the schematic diagram of the tests performed on the compounds. Determine the identities of each compound based on the tests performed. a.) Compound A b.) Compound B c.) Compound C d.) Compound D Choices: I. 1-hexanol II. hexanal III. 2-hexanone IV. 3-methyl-3-pentanoWhen pentane is exposed to Br2 in the presence of light, a halogenation reaction occurs. Write the formulas of:(a) All possible products containing only one bromine(b) All possible products containing two bromines that are not on the same carbonFor the following reaction, 4.91 grams of water are mixed with excess chlorine gas. The reaction yields 12.5 grams of hydrochloric acid.chlorine (g) + water (l) hydrochloric acid (aq) + chloric acid (HClO3) (aq) What is the theoretical yield of hydrochloric acid ? grams What is the percent yield of hydrochloric acid ? %