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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 28 July 2022, Shift 1, Chemistry Q77

Question 77 of 90 in this shift, Chemistry question 17 of 30, Section A.

Terylene polymer is obtained by condensation of :
  1. (1)Ethane-1, 2-diol and Benzene-1, 3 dicarboxylic acid
  2. (2)Propane-1, 2-diol and Benzene-1, 4 dicarboxylic acid
  3. (3)Ethane-1, 2-diol and Benzene-1, 4 dicarboxylic acidOfficial answer
  4. (4)Ethane-1, 2-diol and Benzene-1, 2 dicarboxylic acid

Official answer

Option 3

NTA final key (2022 Session 2).

Chapter
Polymers
Topic
Polymers
Idea tested
Terylene (Dacron) Monomers

Same idea in other shifts

Asked 2× in all
  1. 29 Jun 2022, Shift 2 · Q77Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Dacron is an example of…EasyAssertion–reason

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.