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Friday, 9 October

JEE Main Chemistry · Some Basic Concepts of Chemistry

Molar Mass and Gas Volume

Molar Mass and Gas Volume (Some Basic Concepts of Chemistry) was asked 2 times in 2 JEE Main shifts, 2017–2026, out of the 42 shifts Lumi analysed.

Times asked
2
in 2 shifts
Years
2017–2026
Usual format
Single correct
Calculation
Pattern
Occasional
repeats across shifts

How it is asked

  • Moles and molecules from gas volume
  • Molar mass from moles of gas evolved

Difficulty

Easy 2Medium 0Hard 0

Where it sits

Chapter: Some Basic Concepts of Chemistry. Topic: Mole Concept, 25 questions over 12 ideas.

Other repeat ideas in this topic

Every time it came

All 2 questions

Newest first, each with its options and official answer.

  1. 4 Apr 2026, Shift 1 · Q51Number of moles and number of molecules in 1.41871.4187 L of SO2\mathrm{SO_2} at STP respectively areEasySingle correct
  2. 2 Apr 2017 (offline) · Q321 gram of a carbonate (M2CO3\mathrm{M_2CO_3}) on treatment with excess HCl produces 0.01186 mole of CO2\mathrm{CO_2}. The molar mass of…EasySingle correct