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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceMatch the listMediumRecall

JEE Main 4 August 2021, Shift 1, Chemistry Q31

Question 31 of 90 in this shift, Chemistry question 1 of 30, Section A.

Match List I with List II List I List II A. Frenkel defect I. CsCl B. Schottky defect II. Pink LiCl C. Impurity defect III. ZnS D. Metal excess defect IV. Solid solution of CdCl2_2 and AgCl Choose the correct answer from the options given below :
  1. (1)A–I, B–IV, C–II, D–III
  2. (2)A–IV, B–II, C–III, D–I
  3. (3)A–III, B–I, C–IV, D–IIOfficial answer
  4. (4)A–II, B–III, C–I, D–IV

Official answer

Option 3

NTA final key.

Chapter
The Solid State
Topic
Solid State Defects
Idea tested
Frenkel Defect

Same idea in other shifts

Asked 2× in all
  1. 26 Aug 2021, Shift 1 · Q31Given below are two statements : Statement I : Frenkel defects are vacancy as well as interstitial defects. Statement II : Frenkel defect…EasyTwo statements

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.