Question

‘Cis-1, 4-polyisoprene’ is

• A. Thermoplastic
• B. Thermosetting plastic
• C. Elastic (rubber)
• D. Resin

Answer 1

Answer: (C)

Elastic (rubber)

Answer 2

Natural rubber is the only addition polymer of nature and is known as $Cis - 1,4 -$ polyisoprene.