Dialysis and Its Applications in Colloid Separation
Chemistry ⇒ Solutions and Colloids
Dialysis and Its Applications in Colloid Separation starts at 11 and continues till grade 12.
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A colloidal solution contains both NaCl and glucose as impurities. Which process would you use to remove both?
A colloidal solution is placed in a bag made of cellophane and immersed in distilled water. After some time, the conductivity of the water increases. What does this indicate?
A protein solution is contaminated with sodium chloride. Which method would you use to remove the salt without losing the protein?
Describe how the process of dialysis is similar to osmosis.
A colloidal solution contains both NaCl and glucose as impurities. Which process would you use to remove both?
A colloidal solution is placed in a bag made of cellophane and immersed in distilled water. After some time, the conductivity of the water increases. What does this indicate?
A protein solution is contaminated with sodium chloride. Which method would you use to remove the salt without losing the protein?
In a laboratory experiment, a colloidal solution of starch is contaminated with NaCl. Which method would you use to purify the starch sol?
During dialysis, the rate of removal of impurities can be increased by (1) Stirring the solution (2) Heating the solution (3) Replacing the external water frequently (4) All of the above
Which of the following factors does NOT affect the rate of dialysis? (1) Temperature (2) Surface area of membrane (3) Concentration gradient (4) Color of the solution
Which of the following is a common laboratory application of dialysis? (1) Purification of gold sol (2) Preparation of alloys (3) Electrolysis of water (4) Distillation of alcohol
Which of the following is a limitation of dialysis? (1) It is a slow process (2) It cannot remove large particles (3) It requires a semipermeable membrane (4) All of the above
Dialysis is mainly used to remove ______ from colloidal solutions.
Fill in the blank: The movement of solute particles from a region of higher concentration to a region of lower concentration through a semipermeable membrane is called ______.
Fill in the blank: The process of dialysis is based on the difference in ______ of particles.
Fill in the blank: The process of dialysis is commonly used to purify ______ sols.
True or False: Dialysis can be used to concentrate colloidal solutions.
True or False: Dialysis can be used to remove both ionic and non-ionic impurities from colloidal solutions.
True or False: Dialysis can be used to separate a mixture of two different electrolytes.
True or False: Dialysis can be used to separate proteins from salts in a solution.
