Chemistry · May / June 2018 · Paper 11 · Question 40
5070Polymers
Which partial structure represents nylon?
- AC(=O)-[shaded box]-C(=O)-O-[white box]-O-C(=O)-[shaded box]-C(=O)-O-[white box]-O
- BC(=O)-[shaded box]-C(=O)-N(H)-[black box]-N(H)-C(=O)-[crosshatched box]-C(=O)-N(H)-[grey box]-N(H)
- CC(=O)-[shaded box]-C(=O)-N(H)-[white box]-N(H)-C(=O)-[shaded box]-C(=O)-N(H)-[white box]-N(H)
- DC(=O)-[shaded box]-C(=O)-O-[black box]-O-C(=O)-[crosshatched box]-C(=O)-O-[grey box]-O
As printed in the paper
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Correct answer: C. C(=O)-[shaded box]-C(=O)-N(H)-[white box]-N(H)-C(=O)-[shaded box]-C(=O)-N(H)-[white box]-N(H)
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