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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceMatch the listEasyRecall

JEE Main 27 August 2021, Shift 2, Chemistry Q33

Question 33 of 90 in this shift, Chemistry question 3 of 30, Section A.

Match List - I with List - II : List - I (Name of ore/mineral) : (a) Calamine (b) Malachite (c) Siderite (d) Sphalerite List - II (Chemical formula) : (i) ZnS\mathrm{ZnS} (ii) FeCO3\mathrm{FeCO_3} (iii) ZnCO3\mathrm{ZnCO_3} (iv) CuCO3⋅Cu(OH)2\mathrm{CuCO_3 \cdot Cu(OH)_2} Choose the most appropriate answer from the options given below :
  1. (1)(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
  2. (2)(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)Official answer
  3. (3)(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  4. (4)(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

Official answer

Option 2

NTA final key.

Chapter
General Principles and Processes of Isolation of Elements
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.