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  1. Living Things (Habitat) | Week 1, 2 & 3
    8 Topics
    1 Quiz
  2. Living Things (Uniqueness of Man) | Week 4
    9 Topics
    1 Quiz
  3. Growth and Development | Week 5 & 6
    4 Topics
    1 Quiz
  4. Chemicals | Week 7 & 8
    4 Topics
    1 Quiz
  5. Work, Energy & Power | Week 9
    4 Topics
    1 Quiz

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Topic Content:

  • Classes of Chemicals Based on Uses
    • Pharmaceutical/cosmetics, Nuclear, Agrochemical, Industrial, Laboratory

Chemicals can be classified based on their use;

a. Pharmaceutical / Cosmetics:

i. Pharmaceutical Chemicals:

These are substances that have the power to heal certain diseases. They are substances used in the diagnosis, treatment, or prevention of disease and for restoring, correcting, or modifying organic functions.

Examples of pharmaceutical chemicals are as follows:

1. Bismuth Trioxocarbonate (IV) is used to cure stomach disorders.

2. Potassium bromide: used as a sedative.

3. Quinine: For treatment of malaria fever.

4. Mercury (I) Chloride: Used as a purgative.

5. Insulin: For treatment of diabetes.

6. Aspirin: Used as a pain reliever.

liquid quinine
Liquid Quinine is a medication used to treat malaria and babesiosis.

ii. Cosmetic Chemicals:

These are chemicals used in beauty products like soaps, creams, etc. examples are:


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