Which statement is correct?


Which statement is correct?

  1. Buna-S is a synthetic and linear thermosetting polymer

  2. Neoprene is addition copolymer used in plastic bucket manufacturing

  3. Synthesis of Buna-S needs nascent oxygen

  4. Buna- $N$ is a natural polymer

Correct Option: , 3


Synthesis of Buna-S needs nascent oxygen.

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