JEE Main · Chemistry · Polymers
Natural and Synthetic Rubber
JEE Main asked Natural and Synthetic Rubber 2 times in 2 of the 108 shifts Lumi analysed, all in 2022. It belongs to Polymers (Chemistry). In 2022 it came in more than one shift of the same year.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 1 of 8
- First asked
- 2022
- the only year
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Assertion–reason is the usual form. Skill tested: conceptual.
- Components for vulcanization of rubber
- Assertion-reason on natural rubber
Difficulty
Every question was multiple choice.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 28 Jun 2022, Shift 2 · Q78Given below are two statements, one is Assertion (A) and other is Reason (R). Assertion (A) : Natural rubber is a linear polymer of…EasyAssertion–reason
- 26 Jul 2022, Shift 2 · Q78Vulcanization of rubber is carried out by heating a mixture ofEasySingle correct
Shifts: 28 Jun 2022, Shift 2, 26 Jul 2022, Shift 2.
Same topic
Other ideas in Polymers
Polymers has 22 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.
- Polymer Classification9× · 2023
- Neoprene Synthesis4× · 2022
- Buna-S (SBR) Monomers3× · 2023
- Common Condensation Polymers3× · 2023
- Novolac Structure and Role3× · 2022
- HDPE vs LDPE and Ziegler-Natta Catalyst2× · 2023
- Common Addition Polymers2× · 2022
- Novolac Intermediate Formation2× · 2022
- PHBV Monomers2× · 2022
- Terylene (Dacron) Monomers2× · 2022
- Homopolymers vs Copolymers (Buna-S and Buna-N)2× · 2021
- Polyacrylonitrile (PAN / Orlon)once · 2023