AIIMS 2006
- Exam
- AIIMS
- Year
- 2006
- Subject
- Chemistry
- Chapter
- Polymers
AIIMS 2006 · Chemistry · Polymers
Assertion : 1,3-butadiene is the monomer for natural rubber. Reason...
Assertion : 1,3-butadiene is the monomer for natural rubber.
Reason : Natural rubber is formed through anionic addition polymerization.
Options
- AIf both assertion and reason are true and reason is the correct explanation of the assertion
- BIf both assertion and reason are true but reason is not the correct explanation of the assertion
- CIf assertion is true, but reason is false
- DBoth assertion and reason are false statements.
Correct answer
D. Both assertion and reason are false statements.
Step-by-step solution
Isoprene (2-methyl-1,3-butadiene) is the monomer for natural rubber. Natural rubber is formed through cationic addition polymerisation. Cationic addition polymerisation is catalysed by acids and Lewis acids. Alkenes containing electron-donating groups usually undergoes cationic addition polymerisation.