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Friday, 9 October

JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 16 March 2021, Shift 2, Chemistry Q49

Question 49 of 90 in this shift, Chemistry question 19 of 30, Section A.

Which of the following polymer is used in the manufacture of wood laminates ?
  1. (1)Melamine formaldehyde resin
  2. (2)Urea formaldehyde resinOfficial answer
  3. (3)cis-poly isoprene
  4. (4)Phenol and formaldehyde resin

Official answer

Option 2

NTA final key.

Chapter
Polymers
Topic
Polymers
Idea tested
Urea-Formaldehyde Resin

Same topic in other shifts

All Polymers questions
  1. 6 Apr 2023, Shift 1 · Q79Polymer used in orlon is:EasySingle correct
  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. 28 Jul 2022, Shift 1 · Q77Terylene polymer is obtained by condensation of :EasySingle correct
  6. 24 Jun 2022, Shift 1 · Q77Which of the following is an example of polyester ?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 42 of the 174 JEE Main shifts held from 2017 to 2026.