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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceAssertion–reasonEasyRecall

JEE Main 29 June 2022, Shift 2, Chemistry Q77

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

Given 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 polyester polymer. Reason R: Dacron is made up of ethylene glycol and terephthalic acid monomers. In the light of the above statements, choose the most appropriate answer from the options given below.
  1. (1)Both A and R are correct and R is the correct explanation of A.Official answer
  2. (2)Both A and R are correct but R is NOT the correct explanation of A.
  3. (3)A is correct but R is not correct.
  4. (4)A is not correct but R is correct.

Official answer

Option 1

NTA final key.

Chapter
Polymers
Topic
Polymers
Idea tested
Terylene (Dacron) Monomers

Same idea in other shifts

Asked 2× in all
  1. 28 Jul 2022, Shift 1 · Q77Terylene polymer is obtained by condensation of :EasySingle correct

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.