Potassium Permanganate and Oxidation Reactions Quiz
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Questions and Answers

What are substances like alkaline potassium permanganate and acidified potassium dichromate known as in the context of oxidation reactions?

  • Precipitates
  • Reducing agents
  • Catalysts
  • Oxidising agents (correct)

    • In the context of oxidation reactions, what does an oxidising agent do to the starting material?

  • Adds hydrogen
  • Removes oxygen
  • Adds oxygen (correct)
  • Removes hydrogen

    • What role do catalysts like palladium or nickel play in the hydrogenation of unsaturated hydrocarbons to saturated hydrocarbons?

  • Initiate the reaction
  • Speed up the reaction (correct)
  • Change the reactants
  • Inhibit the reaction

    • Which type of hydrocarbons add hydrogen in the presence of catalysts to give saturated hydrocarbons?

    <p>Unsaturated hydrocarbons</p> Signup and view all the answers

    What is the primary function of a catalyst in a chemical reaction?

    <p>Speed up the reaction</p> Signup and view all the answers

    Why are substances like alkaline potassium permanganate and acidified potassium dichromate called oxidising agents in chemical reactions?

    <p>They add oxygen to starting materials</p> Signup and view all the answers

    Which product is formed when ethanoic acid undergoes combustion?

    <p>CO2 + H2O + heat and light</p> Signup and view all the answers

    What type of reaction occurs when bromopentane undergoes substitution?

    <p>Addition reaction</p> Signup and view all the answers

    Which compound is capable of producing a yellow, sooty flame when burned?

    <p>Ethanoic acid</p> Signup and view all the answers

    What is the name of the compound CH3—CH2—Br?

    <p>Bromoethane</p> Signup and view all the answers

    What is the role of a catalyst in a chemical reaction?

    <p>Speeds up the reaction without being consumed</p> Signup and view all the answers

    Which compound is likely to undergo hydrogenation?

    <p>Hexanal</p> Signup and view all the answers

    What is the purpose of adding soap to test tube B in the experiment described in the text?

    <p>To form micelles to clean the oil droplets</p> Signup and view all the answers

    In the context of the text, what is the function of the ionic-end of soap molecules?

    <p>Interacts with water</p> Signup and view all the answers

    What property of soap makes it effective in cleaning dirt that is oily in nature?

    <p>Formation of emulsions</p> Signup and view all the answers

    If you dissolve soap in a hydrocarbon, what structure would be formed based on the text?

    <p>Micelle</p> Signup and view all the answers

    Which part of the soap molecule faces outside the micelle structure in water?

    <p>Ionic-end</p> Signup and view all the answers

    How do soap micelles help in cleaning clothes effectively?

    <p>By forming emulsions with oil droplets</p> Signup and view all the answers

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