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Saturday, 31 October

JEE Main · Chemistry · Polymers

Novolac Structure and Role

JEE Main asked Novolac Structure and Role 3 times in 3 of the 108 shifts Lumi analysed, in 2021 and 2022. It belongs to Polymers (Chemistry). The longest wait between two years asking it was 1 year. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2021
last in 2022
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021 and 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.07’210.03’220’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 1 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.

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20221 of 24
  • 20212 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: recall.

  • Identify polymer from repeating unit
  • Number of monomer units in polymer

Difficulty

Easy 2Medium 1Hard 0

1 of the 3 questions had a numerical answer.

Every question

All 3 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 25 Jun 2022, Shift 2 · Q88The Novolac polymer has mass of 963 g. The number of monomer units present in it are ________MediumNumerical value
  2. 25 Jul 2021, Shift 1 · Q48[figure: polymer repeating unit −(CH2-(\mathrm{CH_2}-C6H3(OH)-CH2\mathrm{CH_2}-C6H3(OH)-CH2)−\mathrm{CH_2})-, phenol rings joined through CH2…EasySingle correctHas a figure
  3. 31 Aug 2021, Shift 1 · Q49Monomer of Novolac is :EasySingle correct

Shifts: 25 Jul 2021, Shift 1, 31 Aug 2021, Shift 1, 25 Jun 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.

Topic analysisChapter analysisAll repeated ideas