NURSING EXAM QUESTIONS
PHARMACEUTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following method are utilized to impart stability to colloids
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Providing a particle a charge
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Surrounding each particle with protective solvent sheath
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Both of the above
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None of the above
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Explanation:
Detailed explanation-1: -Ligand interactions. The use of bulky ligands is a widely used method to impart stability to colloidal dispersions, in particular of apolar solvents.
Detailed explanation-2: -The stability of a colloidal solution is due to the fact that the colloids in the sols are electrically charged. The particles, therefore, repel one another and do not coalesce (come close together) to form large non-colloidal particles.
Detailed explanation-3: -The process of settling of colloidal particles is called coagulation.
There is 1 question to complete.