Discover the World of Fatty Acids

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Questions and Answers

What is the main purpose of measuring Acid Value (AV) in pharmaceutical oils?

  • To determine the hydrolytic rancidity of the lipid (correct)
  • To determine the molecular weight of the fatty acids
  • To detect the presence of free fatty acids
  • To measure the pH of the substance

What is the main difference between Resin and Rosin?

  • Rosin is used in preparation of zinc oxide, adhesive plaster, and ointment, while Resin is not used in any pharmaceutical preparations
  • Resin is insoluble in water, while Rosin is soluble in water
  • Resin is a solid residue, while Rosin is a resinous mixture (correct)
  • Rosin is obtained after distillation of volatile oil from oleoresin gum of various species of Pinus, while Resin is a living natural resource

What is the main function of Saponification Value (SV)?

  • To detect glycerides of acids
  • To measure the hydrolytic rancidity of the lipid
  • To break down a neutral fat into glycerol and fatty acids (correct)
  • To determine the molecular weight of the fatty acids

Which of the following oils is classified as a non-drying oil according to Iodine Value?

<p>Olive oil (B)</p> Signup and view all the answers

What is the main purpose of measuring Unsaponifiable Matter in fatty oils?

<p>To detect substances added for adulteration (C)</p> Signup and view all the answers

What is the main difference between Balsam and Rosin?

<p>Balsam is a benzoic or cinnamic acid, while Rosin is a living natural resource (B)</p> Signup and view all the answers

What is the main purpose of measuring Hydroxyl Value (HV) in fatty substances?

<p>To give identity and purity of fatty substances containing alcoholic hydroxyl groups (A)</p> Signup and view all the answers

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