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प्रश्न
Write the names of monomer of the following polymer:
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उत्तर
Tetrafluoroethene \[\ce{CF_2 = CF_2}\]
संबंधित प्रश्न
Which of the following is a fibre? Nylon, neoprene, PVC
Write the names of monomers of the following polymers.
How can you differentiate between addition and condensation polymerisation?
How is dacron obtained from ethylene glycol and terephthalic acid?
Write a note on aldol condensation.
What is the significance of number of 6,6 in the polymer nylon-6,6?
Write the name of the monomer of the following polymer:
Bakelite
Which of the following polymers can have strong intermolecular forces?
(i) Nylon
(ii) Polystyrene
(iii) Rubber
(iv) Polyesters
Which factor imparts crystalline nature to a polymer like nylon?
Match the polymers given in Column I with their main applications given in Column II.
| Column I | Column II |
| (i) Bakelite | (a) Unbreakable crockery |
| (ii) Low-density polythene | (b) Non-stick cookwares |
| (iii) Melamine-formaldehyderesin | (c) Packaging material for shock absorbance |
| (iv) Nylon 6 | (d) Electrical switches |
| (v) Polytetrafluoroethane | (e) Squeeze bottles |
| (vi) Polystyrene | (f) Tyre, cords |
Assertion: Polyamides are best used as fibres because of high tensile strength.
Reason: Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers
Nylon – 6 is made from
Which is used for the formation of nylon – 6?
The polymer formed on heating Novolac with formaldehyde is ______.
Match List - I with List - II:
| List - I (Polymer) |
List - II (used for items) |
||
| (A) | Nylon 6, 6 | (I) | Buckets |
| (B) | Low density polythene | (II) | Non-stick utensils |
| (C) | High density polythene | (III) | Bristles of brushes |
| (D) | Teflon | (IV) | Toys |
Choose the correct answer from the options given below:
