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SubjectsGeneral ScienceChemistryChapter 7 — Everyday Chemistry7.3 Drugs, Cosmetics & Cleansing Agents

Topic 7.3 · General Science · Everyday Chemistry

Drugs, Cosmetics & Cleansing Agents

Drugs, Cosmetics & Cleansing Agents is studied as part of "Everyday Chemistry" (Chemistry) in General Science. Chemistry in daily life — fertilisers, food additives, medicines, cosmetics and water chemistry — links science to practical affairs.

In the examination context, drugs, cosmetics & cleansing agents carries conceptual questions that test both factual recall and analytical understanding. Revise this topic in sequence with the rest of the chapter so that chronological and thematic links are clear.

Important Facts

Detergents
Surfactants that clean with water
Hard water
Water with high Ca²⁺/Mg²⁺ salts
Urea
Nitrogenous fertiliser
Aspirin
Acetylsalicylic acid — a pain reliever

Key Points

  • Urea — Nitrogenous fertiliser
  • Aspirin — Acetylsalicylic acid — a pain reliever
  • Detergents — Surfactants that clean with water
  • Hard water — Water with high Ca²⁺/Mg²⁺ salts

Important Names

Dr. Wallace CarothersFelix Hoffmann

Important Dates

1897Aspirin synthesised by Hoffmann
Exam-Oriented Notes
  • »Hard water forms scum with soap; detergents work in hard water. Nylon was the first synthetic fibre (Carothers).

Related topics

7.1 Fertilisers & Pesticides7.2 Food Chemistry & Preservatives7.4 Water Chemistry & Pollution
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