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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
Write the names of monomers of the following polymers:
Write the names of monomer of the following polymer:
How can you differentiate between addition and condensation polymerisation?
How is dacron obtained from ethylene glycol and terephthalic acid?
How are the following polymers prepared?
Orlon
What is the significance of number of 6,6 in the polymer nylon-6,6?
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
Which of the following polymer is used for making phonograph records?
Perion is
Melamine is
Which is used for the formation of nylon – 6?
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:
