Learn

Saturday, 31 October

JEE Main · Chemistry · Some Basic Concepts of Chemistry

Mole-to-Mole Relationships

JEE Main asked Mole-to-Mole Relationships 5 times in 5 of the 108 shifts Lumi analysed, in 2022, 2023 and 2024. It belongs to Stoichiometry, in Some Basic Concepts of Chemistry (Chemistry). The longest wait between two years asking it was 1 year. In 2023 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
5
in 5 shifts
Years
3 of 8
First asked
2022
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2022, 2023 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170’200’210.03’220.14’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 2 in 12 shifts · 2024: 2 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20242 of 18
  • 20232 of 12
  • 20221 of 24
  • 20210 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Moles of reactant from product mass
  • Molar mass from moles of gas evolved

Difficulty

Easy 4Medium 1Hard 0

3 of the 5 questions had a numerical answer.

Every question

All 5 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 31 Jan 2024, Shift 1 · Q81Number of moles of methane required to produce 22g CO2(g)\mathrm{CO_{2(g)}} after combustion is x×10−2\mathrm{x}\times10^{-2} moles. The value of…EasyNumerical value
  2. 5 Apr 2024, Shift 2 · Q61The number of moles of methane required to produce 11 g CO2(g)\mathrm{CO_2(g)} after complete combustion is : (Given molar mass of methane in…EasySingle correct
  3. 13 Apr 2023, Shift 2 · Q811g of a carbonate (M2CO3\mathrm{M_2CO_3}) on treatment with excess HCl produces 0.01 mol of CO2\mathrm{CO_2}. The molar mass of…EasyNumerical value
  4. 13 Apr 2023, Shift 1 · Q9020 mL of calcium hydroxide was consumed when it was reacted with 10 mL of unknown solution of H2SO4\mathrm{H_2SO_4}. Also 20 mL standard…MediumNumerical value
  5. 25 Jul 2022, Shift 1 · Q61SO2Cl2\mathrm{SO_2Cl_2} on reaction with excess of water results into acidic mixture SO2Cl2+2H2O→H2SO4+2HCl\mathrm{SO_2Cl_2+2H_2O\rightarrow H_2SO_4+2HCl} 1616…EasySingle correct

Shifts: 25 Jul 2022, Shift 1, 13 Apr 2023, Shift 2, 13 Apr 2023, Shift 1, 31 Jan 2024, Shift 1, 5 Apr 2024, Shift 2.

Same topic

Other ideas in Stoichiometry

Stoichiometry has 24 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas