Advertisements
Advertisements
प्रश्न
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
विकल्प
Assertion and reason both are correct statement but reason does not explain assertion.
Assertion and reason both are correct statements and reason explains the assertion.
Both assertion and reason are wrong statement.
Assertion is correct statement and reason is wrong statement.
Assertion is wrong statement and reason is correct statement.
Advertisements
उत्तर
Assertion and reason both are correct statements and reason explains the assertion.
Explanation:
Polyamides like nylons are best-used fibres. They have high tensile strength due to presence of strong intermolecular hydrogen bond.
APPEARS IN
संबंधित प्रश्न
Write the names and structure of the monomers of the following polymers:
Nylon-6, 6
Write a note on aldol condensation.
What are thermoplastic polymers?
Name the monomers and the type of polymerization in each of the following polymers:
Bakelite
Which of the following polymers can have strong intermolecular forces?
(i) Nylon
(ii) Polystyrene
(iii) Rubber
(iv) Polyesters
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 |
Acetic acid is added in the preparation of nylon-6 to
Which of the following polymer is used for making phonograph records?
A raw material used in making nylon is
Perion is
Nylon is a
Wash and wear clothes are manufactured using
Melamine is
Nylon – 6 is made from
Which is used for the formation of nylon – 6?
The polymer formed on heating Novolac with formaldehyde is ______.
The polymer containing strong intermolecular forces, e.g., hydrogen bonding, 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:
