NURSING EXAM QUESTIONS
PHARMACEUTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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starch and clay are positively charged colloids
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Starch granules have a positive charge and, when implanted subcutaneously in the mouse, attract the negatively charged leucocytes.
Detailed explanation-2: -Clay, eosin and charcoal are negatively charged sol.
Detailed explanation-3: -Examples of positively charged sols: Haemoglobin, metal hydroxides, basic dyes, etc. Examples of negatively charged sols: Metal sols, metal sulphides, gold sols, blood, starch, acidic dyes, etc.
There is 1 question to complete.