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Assertion (A) Polyamides are best used as fibres because of hi

Chemistry Exemplar

Class 12

NCERT Exemplar

Chapter 1: The Solid State

77 questions

Chapter 2: Solutions

62 questions

Chapter 3: Electrochemistry

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Chapter 4: Chemical Kinetics

66 questions

Chapter 5: Surface Chemistry

81 questions

Chapter 6: General Principles and Processes of Isolation of Elements

55 questions

Chapter 7: The p-Block Elements

72 questions

Chapter 8: The d-and f-Block Elements

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Chapter 9: Coordination Compounds

50 questions

Chapter 10: Haloalkanes and Haloarenes

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Chapter 11: Alcohols, Phenols and Ethers

74 questions

Chapter 12: Aldehydes, Ketones and Carboxylic Acids

50 questions

Chapter 13: Amines

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Chapter 14: Biomolecules

71 questions

Chapter 15: Polymers

57 questions

Assertion (A) Olefinic monomers undergo addition polymerisation.
Reason (R) Polymerisation of vinyl chloride is initiated by peroxides/persulphates.

Assertion (A) Polyamides are best used as fibres because of high tensile strength.
Reason (R) 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.

Assertion (A) For making rubber synthetically, isoprene molecules are polymerised.
Reason (R) Neoprene (a polymer of chloroprene) is a synthetic rubber.

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Chapter 16: Chemistry in Everyday Life

100 questions

Question

Easy

Solving time: 2 mins

Assertion (A) Polyamides are best used as fibres because of high tensile strength.
Reason (R) 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.

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 statements.

Assertion is correct statement and Reason is wrong statement.

Assertion is wrong statement and reason is correct statement.

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Text solutionVerified

Assertion and reason both are correct and reason explains assertion. Polyamides are best used as fibres because of high tensile strength. This is due to 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.

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Practice more questions from Chemistry Exemplar (NCERT Exemplar)

Assertion (A) Olefinic monomers undergo addition polymerisation.
Reason (R) Polymerisation of vinyl chloride is initiated by peroxides/persulphates.

Assertion (A) For making rubber synthetically, isoprene molecules are polymerised.
Reason (R) Neoprene (a polymer of chloroprene) is a synthetic rubber.

View all

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Question Text	Assertion (A) Polyamides are best used as fibres because of high tensile strength. Reason (R) 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.
Topic	Polymers
Subject	Chemistry
Class	Class 12
Answer Type	Text solution:1
Upvotes	145

Assertion (A) Polyamides are best used as fibres because of high tensile strength.
Reason (R) 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.

Text solutionVerified

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Assertion (A) Polyamides are best used as fibres because of high tensile strength.Reason (R) 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.

Text solutionVerified

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Assertion (A) Polyamides are best used as fibres because of high tensile strength.
Reason (R) 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.