JEE Main 2021ChemistryIonic EquilibriumEasyNumerical

JEE Main 2021 — Ionic Equilibrium Question with Solution

JEE Main 2021 (25 Jul Shift 2)

Question

Assuming that Ba(OH)2 is completely ionised in aqueous solution under the given conditions the concentration of H3O+ ions in 0.005M
aqueous solution of Ba(OH)2 at 298 K is _________ ×10-12 mol L-1. (Nearest integer)

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Correct answer
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Step-by-step explanation

At 298 K : in aq. solution H3O+OH-=10-14

H3O+=10-1410-2=10-12

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About this question

This is a previous-year question from JEE Main 2021, covering the Ionic Equilibrium chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.