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Friday, 9 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 topic in other shifts

All Polymers questions
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  2. 11 Apr 2023, Shift 1 · Q78The polymer X - consists of linear molecules and is closely packed. It is prepared in the presence of triethylaluminium and titanium…EasySingle correct
  3. 13 Apr 2023, Shift 2 · Q80Match List I with List II LIST I | LIST II A. Weak intermolecular forces of attraction | I. Hexamethylenediamine + adipic acid B. Hydrogen…MediumMatch the list
  4. 25 Jul 2022, Shift 1 · Q77Melamine polymer is formed by the condensation of :EasyDiagram basedHas a figure
  5. 24 Jun 2022, Shift 1 · Q77Which of the following is an example of polyester ?EasySingle correct
  6. 29 Jun 2022, Shift 1 · Q77The polymer, which can be stretched and retains its original status on releasing the force isEasySingle 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 42 of the 174 JEE Main shifts held from 2017 to 2026.