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Saturday, 31 October

JEE Main · Chemistry · Some Basic Concepts of Chemistry

Molarity of Diluted and Mixed Solutions

JEE Main asked Molarity of Diluted and Mixed Solutions 3 times in 3 of the 108 shifts Lumi analysed, in 2022 and 2025. It belongs to Mole Concept, in Some Basic Concepts of Chemistry (Chemistry). The longest wait between two years asking it was 3 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2022
last in 2025
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2022 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170’200’210.07’220’230’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 2 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 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
  • 20251 of 8
  • 20240 of 18
  • 20230 of 12
  • 20222 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.

  • Molarity after neutralisation and dilution
  • Molarity of product after mixing

Difficulty

Easy 1Medium 2Hard 0

2 of the 3 questions had a numerical answer.

Every question

All 3 questions

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

  1. 3 Apr 2025, Shift 2 · Q5410 mL of 2 M NaOH solution is added to 20 mL of 1 M HCl solution kept in a beaker. Now, 10 mL of this mixture is poured into a volumetric…MediumSingle correct
  2. 25 Jun 2022, Shift 1 · Q851 L aqueous solution of H2SO4\mathrm{H_2SO_4} contains 0.02 m mol H2SO4\mathrm{H_2SO_4}. 50% of this solution is diluted with deionized water to…MediumNumerical value
  3. 28 Jul 2022, Shift 2 · Q512L of 0.2M H2SO4\mathrm{H_2SO_4} is reacted with 2L of 0.1M NaOH solution, the molarity of the resulting product Na2SO4\mathrm{Na_2SO_4} in the…EasyNumerical value

Shifts: 25 Jun 2022, Shift 1, 28 Jul 2022, Shift 2, 3 Apr 2025, Shift 2.

Same topic

Other ideas in Mole Concept

Mole Concept has 18 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas