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प्रश्न
Give reasons for the following
Titanium dioxide is an important ingredient in cosmetics.
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उत्तर
It is a natural pigment powder which provides a base for mineral makeup. It provides mild sun protection and as a pigment gives a white colouration to coloured ingredients.
संबंधित प्रश्न
What is the contribution of chemistry in following field?
Clothing
Name the scientists who discovered the following:
Atoms
_____________ help to increase the production of food.
Fill in the blank:
Inert gases were discovered by ___________
Write True or False against the following statement.
D.D.T. is an important fertiliser:
Choose the correct alternative from the choices given below for the following statement:
Mortar is used as a
Choose the correct alternative from the choices given below for the following statement:
The chemicals prescribed by a doctor in the treatment of infectious diseases are called
Explain how medicines are a boon to mankind. State the positive & negative effects of medicines like aspirin and paracetamol.
Give reasons for the following
Ordinary soap is wasted in hard water.
Give reasons for the following
Polyester is added to natural fiber cotton, to give terylene.
