The intermolecular forces between the molecular chains of fibres are?
A
Vander Waals' forces
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B
Hydrogen bonds
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C
Dipole-dipole interactions
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D
Cross-links
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Solution
The correct option is B Hydrogen bonds The intermolecular forces between the molecular chains of fibres are hydrogen bonds. They are weaker only when compared to cross-links. Kevlar and nylon-6,6 are fibres with hydrogen bonds between their molecular chains.