1.

Struchures of some common polymers are given. Which one is not correctly represented?

Answer»

Teflon `(--CF_(2)-CF_(2)--)_(n)`
Neoprene
`[--CH_(2)-UNDERSET(CL)underset(|)C=CH-CH_(2)-CH_(2)--]_(n)`

Nylon-6,6
`[--NH(CH_(2))_(6)NHCO(CH_(2))_(4)CO--]_(n)`

ANSWER :B


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