मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

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 cha

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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

पर्याय

  • 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.

MCQ
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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.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Polymers - Multiple Choice Questions (Type - I) [पृष्ठ २२५]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 15 Polymers
Multiple Choice Questions (Type - I) | Q 49 | पृष्ठ २२५

संबंधित प्रश्‍न

Write the names and structure of the monomers of the following polymers: 

Nylon-6, 6


Which of the following is a fibre? Nylon, neoprene, PVC


Write the names of monomers of the following polymers.


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?


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:

Nylon – 2 – Nylon – 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

Acetic acid is added in the preparation of nylon-6 to


Which of the following polymer is used for making phonograph records?


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:


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