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During dialysis [1996]
  • a)
    only solvent molecules can diffuse
  • b)
    solvent mol ecules, ions and colloidal particles can diffuse
  • c)
    all kinds of particles can diffuse through the semi-permeable membrane
  • d)
    solvent molecules and ions can diffuse
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
During dialysis [1996]a)only solvent molecules can diffuseb)solvent mo...
The use of membrane for separating colloidal particles is termed as dialysis. Hence it is clear that colloidal particle cannot pass through animal membrane. Hence only solvent molecules and ions (in case of electrodialysis) can diffuse.
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Most Upvoted Answer
During dialysis [1996]a)only solvent molecules can diffuseb)solvent mo...
Explanation:
During dialysis, a semi-permeable membrane is used to separate the blood from the dialysate (the fluid used in dialysis). This membrane allows only certain particles to pass through it. The correct option is 'D' which states that only solvent molecules and ions can diffuse through the semi-permeable membrane during dialysis.

• Solvent molecules: These are the molecules that make up the liquid part of the blood and the dialysate. During dialysis, solvent molecules move from an area of high concentration to an area of low concentration across the semi-permeable membrane. This process is called diffusion.

• Ions: These are charged particles that are present in the blood and the dialysate. During dialysis, ions also move from an area of high concentration to an area of low concentration across the semi-permeable membrane. This process is also called diffusion.

• Colloidal particles: These are larger particles that are suspended in the blood and the dialysate. These particles are too large to pass through the semi-permeable membrane during dialysis. Therefore, option 'B' is incorrect.

• All kinds of particles: This option is incorrect because not all particles can pass through the semi-permeable membrane during dialysis. Only solvent molecules and ions can pass through the membrane.

Therefore, the correct option is 'D' which states that only solvent molecules and ions can diffuse through the semi-permeable membrane during dialysis.
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Community Answer
During dialysis [1996]a)only solvent molecules can diffuseb)solvent mo...
D...Bcz dialysis is the process of removing excess water, solutes, and toxins from the blood in people whose kidneys can no longer perform these functions naturally. This is referred to as renal replacement therapy.
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Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. Colloidal solutions are stable due to

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During dialysis [1996]a)only solvent molecules can diffuseb)solvent mol ecules, ions and colloidal particles can diffusec)all kinds of particles can diffuse through the semi-permeable membraned)solvent molecules and ions can diffuseCorrect answer is option 'D'. Can you explain this answer?
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