Question 1: Write some salient features of rayon.
Answer: Some salient features of rayon are as follows:
Question 2: What are the characteristics of synthetic fibres?
Answer: Following are the characteristics of synthetic fibres:
Question 3: Plastic bags create which kinds of problems?
Answer: Following problems are created by plastic bags:
Question 4: Write a short note on acrylic.
Answer: Acrylic resembles wool and hence is also called synthetic wool. It is cheaper and more durable than wool, and is easier to wash and maintain. Acryclic is less expensive, easily available, easy to wash and is easy to maintain.
Question 5: What is the difference between nylon and rayon?
|It was the first synthetic fibre.||It was the first truly synthetic fibre.|
|Rayon is made from wood pulp.||Nylon is made from coal, water and air.|
|Rayon is used for making curtains, bedsheets, etc.||Nylon is used for making socks, rope, toothbrush, parachute, etc.|
Question 1: Explain the discovery and unique features of nylon.
Answer: Nylon was made in 1931. The term ‘nylon’ has been derived from letters of ‘New York’ and ‘London’. No ingredient from plant or animal source was used in making nylon, as it is made from coal, water and air. Hence, nylon is called the first truly synthetic fibre.
Question 2: Explain different types of plastic and their usages.
Answer: Different types of plastic and their usages are as follows:
Question 3: What are the reasons for popularity of plastic?
Answer: Following are the reasons for popularity of plastic:
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