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प्रश्न
Write short note.
Uses of plastic.
टीपा लिहा
उत्तर
- Melamine is used in domestically useful items like cup, saucers, plates, trey, spare parts of airplane engine and sound insulating coverings etc.
- Polyurethane is used in surfing boards, small boats, furniture, seats in vehicles etc.
- Bakelite is used for making cabinets of radio, T.V., telephones, electric switches, toys, coverings over handles of cookers etc.
- Polyester is used for making fiberglass, toners of laser printers, textile industry etc.
- Polypropylene is used for making parts of loudspeakers & vehicles, ropes, mattresses, laboratory appliances etc.
- Polyethene is used for making milk bags, packing bags, flexible garden pipes etc.
- Polystyrene is used for making thermo-insulating parts of electric appliances like refrigerators, gears of the machine, toys, protective coverings like covers of CD and DVD etc.
- Polyvinyl chloride is used for making bottles, raincoat, pipes, handbags, shoes, electric cable insulation, furniture, ropes, toys etc.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Who is my partner?
| 'A' column | 'B' column |
| a. Lead glass | i. Plates |
| b. Bakelite | ii. Mattresses |
| c. Thermocol | iii. Electric bulb |
| d. Optic glass | iv. Electric switch |
| e. Polypropylene | v. Lens |
Distinguish between.
Man made material and natural material.
Give example of material that can be used again.
Can you replace the following packaging material with those which can be recycled or reused.
Glass tumblers packed in thermocol box.
What are the uses of plastic?
What are the demerits of plastic?
Why is it better to avoid the use of plastic products?
The material which is commonly used for making kitchen containers is
Assertion (A): PVC is an unsafe plastic.
Reason (R): Burning PVC releases dioxins, a most toxic chemical.
Answer the following by rearranging the jumbled letters :
One-time use plastics are also known as ______ plastics.
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