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प्रश्न
Explain why the following is made of thermosetting plastics?
Electric plugs/switches/plug boards
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उत्तर
Thermosetting plastics such as bakelite are poor conductors of heat and electricity. Therefore, they are used for making electric plugs, switches, plug boards, etc.
संबंधित प्रश्न
Explain why the following is made of thermosetting plastics.
Saucepan handles
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 |
Write the natural or manmade raw material of the following items.
Mattress, glass vessel, bangle, chair, gunny bag, broom, knife, pen.
Give example of material that can be used again.
Which is a thermosetting plastic?
Edmund Alexander Parkes was the creator of the first plastic called ______.
Plastics are flexible and waterproof and some are even UV resistant.
Polycarbonate (PC) plastic contains ______.
The used plate is easy to recycle.
Answer the following by rearranging the jumbled letters :
One-time use of plastics causes ______ damage.
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