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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceMatch the listEasyCalculation

JEE Main 10 April 2023, Shift 2, Chemistry Q61

Question 61 of 90 in this shift, Chemistry question 1 of 30, Section A.

Match List I with List II LIST I A. 16 g of CH4\mathrm{CH_4} (g) B. 1 g of H2\mathrm{H_2} (g) C. 1 mole of N2\mathrm{N_2} (g) D. 0.5 mol of SO2\mathrm{SO_2} (g) LIST II I. Weighs 28g II. 60.2×102360.2 \times 10^{23} electrons III. Weighs 32 g IV. Occupies 11.4 L volume at STP Choose the correct answer from the options given below:
  1. (1)A-I, B-III, C-II, D-IV
  2. (2)A-II, B-IV, C-I, D-IIIOfficial answer
  3. (3)A-II, B-IV, C-III, D-I
  4. (4)A-II, B-III, C-IV, D-I

Official answer

Option 2

NTA final key.

Chapter
Some Basic Concepts of Chemistry
Topic
Mole Concept
Idea tested
Mole and Avogadro Calculations

Same idea in other shifts

Asked 11× in all
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  2. 6 Apr 2026, Shift 2 · Q51Which of the following contain the same number of atoms ? (Given : Molar mass in g mol−1^{-1} of H, He, O and S are 1, 4, 16 and 32…EasyOther
  3. 8 Apr 2026, Shift 2 · Q51Match List - I with List - II. List - I (Mass of substance) | List - II (Number of atoms) A. 1.8 mg water | I.…EasyMatch the list
  4. 3 Apr 2025, Shift 1 · Q51Among 10−910^{-9} g (each) of the following elements, which one will have the highest number of atoms? Element: Pb, Po, Pr and PtEasySingle correct
  5. 10 Apr 2023, Shift 1 · Q61The number of molecules and moles in 2.8375 litres of O2\mathrm{O_2} at STP are respectivelyEasySingle correct
  6. 26 Jul 2022, Shift 2 · Q61Hemoglobin contains 0.34% of iron by mass. The number of Fe atoms in 3.3 g of hemoglobin is (Given: Atomic mass of Fe is 56 u,…EasySingle correct
  7. 25 Jun 2022, Shift 1 · Q81The number of N atoms in 681 g of C7H5N3O6\mathrm{C_7H_5N_3O_6} is x×1021x \times 10^{21}. The value of xx is __________. (…EasyNumerical value
  8. 25 Jun 2022, Shift 1 · Q90Number of grams of bromine that will completely react with 5.0 g of pent-1-ene is __________ ×10−2\times 10^{-2} g. (Atomic mass of Br = 80…EasyNumerical value

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.