JEE Main 2021 — Polymers Question with Solution
From: JEE Main 2021 (Online) 25th February Morning Shift
Question
Which statement is correct?
Choose an option
Show full solutionCorrect option: B
Correct answer
BSynthesis of Buna-S needs nascent oxygen.
Step-by-step explanation
Buna-S is an elastomer
Buna-N is a synthetic polymer
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.
Neoprene is a synthetic rubber.
Buna-N is a synthetic polymer
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.
Neoprene is a synthetic rubber.
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This is a previous-year question from JEE Main 2021, covering the Polymers chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.