Question 1: Which of the following is an example of animal fibre?
Question 2: Nylon was discovered in which year?
Question 3: Which of these is an example of plastic?
Question 4: Polywool is a mixture of which substances?
Question 5: Plastic bags are generally made from which plastic?
Question 6: Thermoplastic is used for making which of the following?
Question 7: Which material is used for making bottles and jars?
Question 1: Define synthetic fibre?
Answer: Fibre which is made by humans is called synthetic fibre.
Question 2: Define polymer?
Answer: A chain of a particular chemical substance is called a polymer.
Question 3: What is the component of polyester?/p>
Question 4: What is the full form of PET?
Answer: Poly Ethylene Terephthalate
Question 5: What is the full form of PVC?
Answer: Polyvinyl Chloride
Question 6: Which synthetic fibre is also known as ‘poor man’s silk’?
Question 7: Which synthetic fibre is also known as artificial wool?
Question 8: Define thermoplastic?
Answer: A plastic which can be easily bent and reshaped is called thermoplastic.
Question 9: Define thermosetting plastic?
Answer: A plastic which cannot be bent or reshaped is called thermosetting plastic.
Question 10: What do you understand by biodegradable material?
Answer: A material which can be decomposed by microbes is called a biodegradable material.
Question 11: What do you understand by non-biodegradable material?
Answer: A material which cannot be decomposed by microbes is called a non-biodegradable material.
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