JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 25 June 2022, Shift 2, Chemistry Q88

Question 88 of 90 in this shift, Chemistry question 28 of 30, Section B.

The Novolac polymer has mass of 963 g. The number of monomer units present in it are ________

Official answer

NTA final key.

Chapter: Polymers
Topic: Polymers
Idea tested: Novolac Structure and Role

Same idea in other shifts

Asked 3× in all

31 Aug 2021, Shift 1 · Q49Monomer of Novolac is :EasySingle correct
25 Jul 2021, Shift 1 · Q48[figure: polymer repeating unit $-(\mathrm{CH_2}$ -C6H3(OH)- $\mathrm{CH_2}$ -C6H3(OH)- $\mathrm{CH_2})-$ , phenol rings joined through CH2…EasySingle correctHas a figure

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.