Lipid Detection Methods Quiz
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Questions and Answers

What is the purpose of the iodine value test for oils?

  • To detect the presence of glycerol
  • To determine the degree of unsaturation of a fatty acid (correct)
  • To test for emulsion formation of oil
  • To observe the transparent area formed when oil is applied to paper
  • What does the oil spot test on paper detect?

  • The presence of glycerol
  • The transparent area formed due to the ability of fatty substances to overcome the hydrogen bonds of cellulose (correct)
  • The degree of unsaturation of a fatty acid
  • The formation of a temporary emulsion
  • What is the outcome of the alkaline potassium permanganate test for a given organic compound?

  • The detection of a bad smell indicating the presence of acrolein
  • The pink color disappears for a saturated compound and persists for an unsaturated compound
  • The pink color persists for a saturated compound and disappears for an unsaturated compound (correct)
  • The formation of a permanent emulsion for a saturated compound and a temporary emulsion for an unsaturated compound
  • What is the purpose of adding NaOH and water in the test for emulsion formation of oil?

    <p>To facilitate the formation of a temporary emulsion</p> Signup and view all the answers

    What is the purpose of the flame heating step in the detection of glycerol?

    <p>To test for the bad smell of acrolein</p> Signup and view all the answers

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