Foams MCQ

Test your knowledge with important Foams MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Foams MCQs at Bissoy

• Low molecular weight alcohols or fatty acids (4-6 carbon atoms) can also act as _________
  ক

  Fat

  খ

  Vitamin

  গ

  Protein

  ঘ

  Deformers
• Some surface active chemicals that do not stabilize the foam can displace the surfactants that do stabilize the _________
  ক

  Surfactants

  খ

  Foams

  গ

  Agents

  ঘ

  CMC
• _________ can sometimes be destroyed by blowing hot air on them.
  ক

  Surfactants

  খ

  Foams

  গ

  Agents

  ঘ

  CMC
• Which of the following is utilized in foam formation?
  ক

  Minerals

  খ

  Vitamins

  গ

  Proteins

  ঘ

  Starch
• Surfactants used near their C.M.C. are particularly effective since they can form monolayers.
  ক

  Surfactants

  খ

  Foams

  গ

  Agents

  ঘ

  CMC
• Agents used to induce foam are selected empirically, although a few rules can act as guidance.
  ক

  Surfactants

  খ

  Foams

  গ

  Agents

  ঘ

  CMC
• Froth flotation of minerals uses a surfactant to attach to the mineral particles, making them _________ and a foaming agent to stabilize the foam that is formed.
  ক

  Hydrophilic

  খ

  Hydrophobic

  গ

  Deinking

  ঘ

  Evaporate
• _________ are important because they are utilized in froth flotation deinking and because they are detrimental in many other aspects of pulping and papermaking.
  ক

  Foams

  খ

  Froth

  গ

  Monolayer

  ঘ

  Brown stock washing
• Foams are relatively unstable with lifetimes that increment with increasing viscosity of the liquid phase.
  ক

  True

  খ

  False
• _________ are large air bubbles separated by thin films of liquid with thicknesses in the range of those of colloids.
  ক

  Foams

  খ

  Froth

  গ

  Monolayer

  ঘ

  Synergistic effect