JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 27 June 2022, Shift 1, Chemistry Q84

Question 84 of 90 in this shift, Chemistry question 24 of 30, Section B.

\mathrm{2NOCl(g) \rightleftharpoons 2NO(g) + Cl_2(g)}

In an experiment, 2.0 moles of NOCl was placed in a one-litre flask and the concentration of NO after equilibrium established, was found to be 0.4 mol/L. The equilibrium constant at 30°C is __________

\times10^{-4}

Official answer

125

NTA final key.

Chapter: Equilibrium
Topic: Chemical Equilibrium
Idea tested: ICE Table Construction

Same idea in other shifts

Asked 4× in all

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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.