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प्रश्न
Which of the following polymers can have strong intermolecular forces?
(i) Nylon
(ii) Polystyrene
(iii) Rubber
(iv) Polyesters
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उत्तर
(i) Nylon
(iv) Polyesters
Explanation:
Nylon and polyester are thread forming fibres which possesses high tensile strength and high melting point. They have strong intermolecular forces like hydrogen bonding.
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संबंधित प्रश्न
Write the names and structure of the monomers of the following polymers:
Nylon-6, 6
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How is dacron obtained from ethylene glycol and terephthalic acid?
How are the following polymers prepared?
Orlon
What are thermoplastic polymers?
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
Write the structures of monomers used the following polymers:
Nylon - 6, 6
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
Acetic acid is added in the preparation of nylon-6 to
A raw material used in making nylon is
Perion is
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The polymer containing strong intermolecular forces, e.g., hydrogen bonding, is ______.
The polymer formed on heating Novolac with formaldehyde is ______.
