JEE Main 2021ChemistryIonic EquilibriumEasyMCQ

JEE Main 2021 — Ionic Equilibrium Question with Solution

JEE Main 2021 (25 Feb Shift 2)

Question

The solubility of CaOH2 in water is :
[Given : The solubility product of CaOH2 in water =5.5×10-6]

Choose an option

Show full solutionCorrect option: C
Correct answer
C1.11×10-2

Step-by-step explanation

Given that,

The solubility product of CaOH2 in water =5.5×10-6

CaOH2⇌Ca2+aqs+2OH-aq2s

ksp=s2 s2⇒5.5×10-6=4 s3

4s3=5.5×10-6

s=5.541/3×10-2
s=1.11×10-2

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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.