Question 1 What are plastics? Question 2 Give few examples of plastics? Question 3 Give few uses of polythene? Question 4 Give few use of polyvinyl chloride? Question 5 Give few uses of bakelite? Question 6 Give few uses of melamine? Question 7 Give few uses of teflon? Question 8 Write 2 characteristics of bakelite? Question 9 Write 2 characteristics of … [Read more...] about Plastics
Synthetic fibres and Plastics
Characteristics of Synthetic Fibres
Question 1 Why should not wear clothes made of synthetic fibres while working in kitchen? Question 2 Write few characteristics of synthetic fibres? Question 3 Why synthetic clothes are more durable? Question 4 What are the disadvantages of synthetic fibres? Question 5 The clothes made of synthetic fibres are not suitable for wearing during hot summer weather. … [Read more...] about Characteristics of Synthetic Fibres
Poly Ethylene Terephthalate and Acrylic
Question 1 Give the full form of PET? Question 2 Give few properties of Poly ethylene terephthalate? Question 3 Which synthetic fibre feels like wool and used as a substitute for wool? Question 4 State the uses of PET? Question 5 What is acrylic? Question 6 Write the uses of acrylic fibres? Question 7 Write few properties of acrylic fibre? NCERT Solutions … [Read more...] about Poly Ethylene Terephthalate and Acrylic
Polyester
Question 1 Which synthetic fibre contains the organic group similar to those which give fruits their sweet smell? Question 2 To which kind of synthetic fibres does terylene belong? Question 3 What is polyester? Question 4 Name a popular polyester? Question 5 What are esters? Question 6 Polyester is a thermoplastic polymer. Discuss? Question 7 What is a … [Read more...] about Polyester
Nylon
Question 1 Name the first fully synthesised fibre? Question 2 What is nylon? Question 3 State the important properties of nylon? Question 4 Give the important uses of nylon? Question 5 Name the monomeric unit in nylon? Question 6 Why nylon is a thermoplastic polymer? Nylon It is the first fully synthetic fibre made by man without using any natural raw … [Read more...] about Nylon