Question

Kalavati wanted to give her baby a medicine for fever. She added boiled and cooled water as per the instruction, to the contents of the bottle, upto the mark. She shook the bottle. Then gave a spoonful of the medicine to the baby. As a student of chemistry answer the following
questions:
a. Why did she shake up the contents? What is the process called?
b. What is the value associated with selling medicine in this form?​

Answer 1

Answer:

a)She shook the bottle to bring the contents in form of a sol. Absorption of medicine is easier in the colloidal form. This process of agitating a precipitate is known as peptization.

b)When the medicine is sold in anhydrous form, it has a higher self life and thus can be stored for a longer time.

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Answer 2

a. She shook up the contents to dissolve the contents of the bottle with electrolyte(water) so that the medicine can be absorbed easily in colloidal form.

The process of conversion of a precipitate into a colloidal solution by shaking it with a dispersion medium using an electrolyte is called peptization.

The electrolyte used during peptization is called the peptizing agent.

b. The value associated with selling medicine in this form are:

• The life of medicine can be increased.
• Medicine can be stored for a long time.
• It is easier to prepare the medicines.

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