1.

Structures of some common polymers are given. Which one is not correctly presented ?

Answer»

NYLON`-6,6-{NH(CH_(2))_(6)NHCO(CH_(2))_(4)-CO-}_(n)`
Teflon`(-CF_(2)-CF_(2)-)_(n)`
NEOPRENE

SOLUTION :Neoprene is incorrect
But neoprene is CORRECT.


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