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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 |
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उत्तर
| 'A' column | 'B' column |
| a. Lead glass | i. Electric bulb |
| b. Bakelite | ii. Electric switch |
| c. Thermocol | iii. Plates |
| d. Optic glass | iv. Lens |
| e. Polypropylene | v. Mattresses |
संबंधित प्रश्न
Fill in the blanks with appropriate words.
Like synthetic fibres, plastic is also a _______
Write uses of PVC.
Write the natural or manmade raw material of the following items.
Mattress, glass vessel, bangle, chair, gunny bag, broom, knife, pen.
Distinguish between
Thermoplastic and thermosetting plastic.
Can you replace the following packaging material with those which can be recycled or reused.
Milk packets of polythene.
______ are used to identify different types of plastics.
Explain why the following is made of thermosetting plastics?
Electric plugs/switches/plug boards
Which is a thermosetting plastic?
Plastic articles are available in all possible shapes and sizes. Can you tell why?
Plastics have completely occupied our life. Why?
