Easy MCQ +4 / -1 PYQ · JEE Mains 2021

Which statement is correct?

  1. A Buna-N is a natural polymer.
  2. B Synthesis of Buna-S needs nascent oxygen. Correct answer
  3. C Buna-S is a synthetic and linear thermosetting polymer.
  4. D Neoprene is an addition copolymer used in plastic bucket manufacturing.

Solution

Buna-S is an elastomer <br><br> Buna-N is a synthetic polymer <br><br> Buna-S is polymerised by addition polymerisation method which needs radical initiator for chain propagation step. Nascent oxygen can be used as an Radical initiator. <br><br>Neoprene is a synthetic rubber.

About this question

Subject: Chemistry · Chapter: Polymers · Topic: Addition and Condensation Polymers

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