1.

Which one of the following is an example of a thermosetting polymer-

Answer»

`(--CH_2-underset"CL"underset|C=CH-CH_2--)_n`
`(--CH_2-CH_2--)_n`
`(--oversetoverset(H)|N-(CH_2)_6-oversetoversetH|N-oversetoversetO(||)C-(CH_2)_4-oversetoverset(O)(||)C--)_n`

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