Substitution Reaction in Hydrocarbons
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Questions and Answers

Why are oils containing unsaturated fatty acids preferred for cooking?

  • They undergo substitution reactions easily.
  • They are inert in the presence of most reagents.
  • They are good solvents for tincture iodine.
  • They are more reactive in the presence of most reagents. (correct)

    • What happens when chlorine reacts with methane in the presence of sunlight?

  • Formation of water
  • Formation of chloromethane (correct)
  • Formation of ethanoic acid
  • Formation of ethanol

    • Why is ethanol commonly called alcohol?

  • It is used in welding applications.
  • It is the active ingredient in alcoholic drinks. (correct)
  • It is a good solvent for tincture iodine.
  • It is inert in the presence of most reagents.

    • What is the main reason ethyne and air mixture is not used for welding?

    <p>It forms toxic by-products.</p> Signup and view all the answers

    How can the conversion of ethanol to ethanoic acid be classified?

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

    What makes ethanol a good solvent for various medicines and tonics?

    <p>Its solubility in water in all proportions</p> Signup and view all the answers

    What are substances that are capable of adding oxygen to others known as?

    <p>Oxidising agents</p> Signup and view all the answers

    In the context of oxidation reactions, what is the role of alkaline potassium permanganate?

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

    What is the purpose of using palladium or nickel catalysts in the addition reaction of unsaturated hydrocarbons?

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

    Which type of carbon chains do vegetable oils generally have?

    <p>Unsaturated carbon chains</p> Signup and view all the answers

    What are animal fats generally rich in?

    <p>Saturated fatty acids</p> Signup and view all the answers

    What is the main characteristic that distinguishes oxidising agents from reducing agents?

    <p>They add oxygen to other substances</p> Signup and view all the answers

    What happens when a small piece of sodium is dropped into ethanol?

    <p>Evolution of hydrogen gas and formation of sodium ethoxide</p> Signup and view all the answers

    Which reaction gives ethene by heating ethanol with excess concentrated sulfuric acid?

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

    What are the effects of consuming large quantities of ethanol on living beings?

    <p>Depression of metabolic processes and central nervous system</p> Signup and view all the answers

    What is an outcome of long-term alcohol consumption?

    <p>Development of various health problems</p> Signup and view all the answers

    How do alcohols generally affect living beings when consumed in large quantities?

    <p>Slow metabolic processes and depress the central nervous system</p> Signup and view all the answers

    Which product is formed when ethanol reacts with sodium?

    <p>Sodium ethoxide</p> Signup and view all the answers

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