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प्रश्न
______ are used to identify different types of plastics.
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उत्तर
Resin codes are used to identify different types of plastics.
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संबंधित प्रश्न
Fill in the blanks with appropriate words.
Like synthetic fibres, plastic is also a _______
Plastic shows ______ property, hence it can be moulded to any shape.
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.
Can you replace the following packaging material with those which can be recycled or reused.
Dry eatables in polythene.
The material which is commonly used for making kitchen containers is ______.
Plastic articles are available in all possible shapes and sizes. Can you tell why?
PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Can you write the major difference between these two types of plastics?
What are the drawbacks of plastics?
Pet name for Buckminster Fullerene is ______.
