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प्रश्न
Give reasons for the following
Polyester is added to natural fiber cotton, to give terylene.
उत्तर
Polyester is added to natural fiber cotton, to give terylene because this combination makes the fabric easy to clean and crease-resistant.
संबंधित प्रश्न
Give two examples of the following substance.
Medicines
What is the contribution of chemistry in following field?
Cosmetics
What is the contribution of chemistry in following field?
Medicines
Name the scientists who discovered the following:
Atoms
_____________ help to increase the production of food.
State the contributions of John Dalton – towards the development of Chemistry.
Explain the term ‘cosmetics’ ‘talc’. Name a few main ingredients in cosmetics the role they play.
Differentiate between natural fibres & synthetic fibres.
Give reasons for the following
Titanium dioxide is an important ingredient in cosmetics.
Select the correct name from the choices given below for the following case.
A synthetic fibre used in clothing.
