PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoWrite brief answers to the following questions:
1. Cotton is a natural polymer. What is its chemical name?
Chemical name of natural polymer of cotton is .
2. A synthetic fiber which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk.
What is its common name?
What is its common name?
Its common name is . Rayon is often regarded as artificial silk.
3. Terrycot is made by mixing two types of fibres. Write the names of the fibres.
Terrycot is made by mixing and cotton.
4. Plastic articles are available in all possible shapes and sizes. Can you tell why?
Plastics can be easily , so they are used to make a large variety of articles (or objects) having different shapes and sizes.
Register for free to see more content