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प्रश्न
Differentiate between natural fibres & synthetic fibres.
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उत्तर
Natural fibres: such as cotton and wool, which were directly converted into clothing material.
Synthetic fibres: such as terylene, nylon and rayon are used in expensive clothing; carpets, etc.
संबंधित प्रश्न
Give two examples of the following substance.
Fuel
How is chemistry helpful in improving the health of human beings?
What is the contribution of chemistry in following field?
Medicines
Name the scientists who discovered the following:
Safety lamp
Name the scientists who discovered the following:
Elements
Choose the correct alternative from the choices given below for the following statement:
Mortar is used as a
Explain in brief the importance of Chemistry in agriculture.
State the contributions of Antoine Lavoisier
State the contributions of John Dalton – towards the development of Chemistry.
Give reasons for the following
Aspirin is one of the most widely used medications – globally.
