Crystallization MCQ

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

• Is supersaturation the driving force for all solution crystallization processes?
  ক

  True

  খ

  False
• Which of the following statements about secondary crystallization are correct? Statement 1:Secondary nucleation is the formation of nuclei from pre-existing crystals. Statement 2: Only secondary nucleation increases the number of crystals in the system.
  ক

  True, False

  খ

  True, True

  গ

  False, True

  ঘ

  False, False
• What are the factors that affect crystallization seedling?
  ক

  Temperature and pressure

  খ

  Polymorphism of the crystals and pressure

  গ

  Crystal size distribution and temperature

  ঘ

  Crystal size distribution and polymorphism of the crystals
• What is seeding in crystallization?
  ক

  It is the initial step in crystallization

  খ

  It is the final step in crystallization

  গ

  It is the step where nucleus is added

  ঘ

  It is the sub category crystallization
• What is homogeneous nucleation?
  ক

  Spontaneously generated nuclei

  খ

  Randomly generated nuclei

  গ

  Orderly generated nuclei

  ঘ

  Randomly and spontaneously generated nuclei
• Which of the following statements about primary nucleation are correct? Statement 1:The appearance of the first crystal is called primary nucleation time. Statement 2:It describes the transition to a new phase.
  ক

  True, False

  খ

  True, True

  গ

  False, True

  ঘ

  False, False
• What is nucleation in freezing?
  ক

  Process of gathering of molecules into tiny clusters

  খ

  It is the final step in freezing

  গ

  It is the step where nucleus is added

  ঘ

  It is the sub category freezing
• How to initiate crystallization?
  ক

  Adding seed crystals

  খ

  Adjusting temperature

  গ

  Adjusting pressure

  ঘ

  Adjusting concentration
• What is nucleation in crystallization?
  ক

  It is the initial step in crystallization

  খ

  It is the final step in crystallization

  গ

  It is the step where nucleus is added

  ঘ

  It is the sub category crystallization
• What affects crystal growth?
  ক

  Temperature

  খ

  Pressure

  গ

  Evaporation

  ঘ

  Evaporation, pressure and temperature
• Which of the following statements about seed crystal are correct? Statement 1: Seed crystal provides a nucleation site. Statement 2: The recrystallization is done by seed crystal.
  ক

  True, False

  খ

  True, True

  গ

  False, True

  ঘ

  False, False
• What is classical nucleation theory?
  ক

  To study the kinetics of nucleation

  খ

  To study the nucleation statists

  গ

  To study the concentration of nucleation

  ঘ

  To study the nucleation temperature
• What is the first step in crystallization?
  ক

  Nucleation

  খ

  Cooling

  গ

  Super-cooling

  ঘ

  Pre-crystallization
• What is the other name for super-cooling?
  ক

  Undercooling

  খ

  Overcooling

  গ

  Cooling

  ঘ

  Super cooling
• How can supersaturated solution used in marine ecologist?
  ক

  To study the activity of organisms

  খ

  Tostudy the concentration of water

  গ

  To study the patterns of the organisms

  ঘ

  To detect the populations adaption
• Which of the industry uses the In vivo supersaturation phenomenon?
  ক

  Fashion industry

  খ

  Pharma industry

  গ

  Food industry

  ঘ

  Cement industry
• What is the principle of supersaturation in vapor phase?
  ক

  Poynting effect

  খ

  Gibbs–Thomson effect and Poynting effect

  গ

  Kelvin equation and Gibbs–Thomson effect

  ঘ

  Kelvin equation, Gibbs–Thomson effect and Poynting effect
• What is supersaturation?
  ক

  Has a higher vapor pressure than that of vapor pressure of that compound

  খ

  Has a lower vapor pressure than that of vapor pressure of that compound

  গ

  Has equal pressure similar to vapor pressure of that compound

  ঘ

  Does not depend on vapor pressure of that compound
• What happens when supersaturated solution is cooled down?
  ক

  Solid crystals will dissolve into the water

  খ

  Solid crystals remain as it is in water

  গ

  Solid crystals will grow in bigger size

  ঘ

  Solid crystals will shrink into smaller size