NEET 2019 Model Question Paper 1

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Question : 162 of 180

Marks: +1, -0

Synthetic fibres like nylon-6,6 is very strong because:

They have high molecular weights and high melting points
They have linear molecules consisting of very long chains
They have a high degree of crosslinking by strong C-C bond
They have linear molecules interlinked with forces like hydrogen bonding

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