Experiment: One mole of orange-coloured bromine is added to acolourless unknown hydrocarbon.Observations: The resulting solution is clear and colorless.Select all the following statements that are correct.At least one л bond was present in the hydrocarbon.The bromine was decolourized.Ал bond was not present in the hydrocarbon.Bromine did not react with the hydrocarbon.

Answered: Image /qna-images/answer/1af61a2f-7e6c-47e4-85f2-07e3b7fe7743.jpg

Answered: Experiment: One mole of orange-coloured…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 121QRT

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Experiment: One mole of purple-coloured potassium permanganate is added to a colourless unknown hydrocarbon. Observations: The resulting mixture contains a brown precipitate. Select all the following statements that are correct. A. MnO₂ is produced in the reaction. B. At least one π bond was present in the hydrocarbon. C. Potassium permanganate did not react with the hydrocarbon. D. AT bond was not present in the hydrocarbon.
Please state the observation for Chemical properties of Hydrocarbons: Reaction with KMnO4: 1. Label three clean, dry test tubes with the name of the substance to be tested. 2. Place 4 drops of the sample to be tested in a test tube, carefully add 1 drop of 1% alkaline KMnO4. 3. Record your observations. 4. Disposal: All contents to be disposed into the waste container marked as organic waste. Wash the test tubes and clean them using brush, soap and water. Keep these inverted in the test tube rack. Data Table: Test tube Observations 1) Alkane 2) Alkene 3) Aromatics
Use the following information to answer the question A student added bromine solution to a hydrocarbon sample that contained an isomer of C6H12 (E) in the absence of light. After shaking the sample, the student noticed that the colour of the bromine solution changed from orange to colourless. 6. An interpretation that could be made from the student's observations is that the hydrocarbon sample is and the IUPAC name of the sample could be ii. I The statement above is completed by the information in row: Row i ii A saturated B saturated hex-2-ene cyclopentane C unsaturated hex-2-ene D unsaturated cyclopentane -12 markel
A student added bromine solution to a hydrocarbon sample that contained an isomer of C6H12 (E) in the absence of light. After shaking the sample, the student noticed that the colour of the bromine solution changed from orange to colourless. Use the following information to answer the question 6. An interpretation that could be made from the student's observations is that the hydrocarbon sample isi and the IUPAC name of the sample could be ii . The statement above is completed by the information in row: i saturated saturated unsaturated unsaturated Row A B C D wer (2 marks) ii hex-2-ene cyclopentane hex-2-ene cyclopentane 0
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C. Action of Sulphuric acid Add 5 drops of toluene to 4 drops of concentrated sulphuric acid. Is toluene soluble in the acid? Heat the vial while shaking in a water bath held at 65 - 70 °C for 3 minutes. Cool the vial and pour the contents into 2 mL of ice water. What substituted hydrocarbon has been prepared? Give the reaction equation. D. Action of Nitric Acid Prepare in a vial a mixture of 10 drops of concentrated sulphuric acid and 5 drops of concentrated nitric acid. When the temperature of the acid mixture is 55-60 °C, add 5 drops of toluene. Keep the mixture in a bath maintained at 55-60 °C for about 3 minutes, shaking it at short intervals. Repeat the test with cyclohexane. Which hydrocarbon reacts with nitric acid? Give the reaction equation.
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