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प्रश्न
Give two examples of the following substance.
Building materials
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उत्तर
Two examples of Building materials:
1. Cement
2. Steel
3. Glass
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संबंधित प्रश्न
Give two examples of the following substance.
Food preservatives
What is the contribution of chemistry in following field?
Industry
Name the scientists who discovered the following:
Oxygen
Name the scientists who discovered the following:
Elements
Food items like jams and pickles are protected by using ___________.
Write True or False against the following statement.
Antibiotics are used as preservatives:
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
Differentiate between natural fibres & synthetic fibres.
Give reasons for the following
Polyester is added to natural fiber cotton, to give terylene.
