Advertisements
Advertisements
प्रश्न
Explain the term ‘cosmetics’ ‘talc’. Name a few main ingredients in cosmetics the role they play.
Advertisements
उत्तर
Cosmetics are mixtures of chemical compounds from natural sources or from synthetic sources.
Cosmetics - enhance or alter the appearance or fragrance of an individual. Some sources of compounds used in cosmetics include – modified natural oils and fats, processed minerals e.g. – zinc oxide, iron oxide, and talc.
Talc :
1. Talcum powder is made from talc – a mineral made up of – hydrated magnesium silicate, (contains elements – magnesium silicon, oxygen).
2. In its natural form – talc contains asbestos–which is removed from consumer products.
3. Talc – absorbs moisture, cuts down on friction, keeps skin dry and prevents rashes
संबंधित प्रश्न
Give two examples of the following substance.
Fuel
Give two examples of the following substance.
Chemical war weapons
What is the contribution of chemistry in following field?
Industry
Explain in brief the importance of Chemistry in the production of various products.
State the contributions of Dimitri Mendeleev
Differentiate between the terms food preservatives and food processing with appropriate examples.
Explain how medicines are a boon to mankind. State the positive & negative effects of medicines like aspirin and paracetamol.
Give reasons for the following
Aspirin is one of the most widely used medications – globally.
Food processing is an important procedure for obtaining marketable food products.
Select the correct name from the choices given below for the following case.
A synthetic fibre used in clothing.
