JEE Main 2019ChemistryIonic EquilibriumMediumMCQ

JEE Main 2019 — Ionic Equilibrium Question with Solution

JEE Main 2019 (12 Apr Shift 2)

Question

The molar solubility of CdOH2 is 1.84×10-5M in water. The expectes solunility of CdOH2 in a buffer solution of pH=12 is:

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Show full solutionCorrect option: A
Correct answer
A2.49×10-10M

Step-by-step explanation

Ksp=4s3
=4×1.84×10-53
CdS'OH2⇌Cd+2S'+2OH-10-2+S'≃10-2
S'×10-22=4×1.84×10-53
S'=4×1.843×10-11
(S')=2.491×10-10M

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About this question

This is a previous-year question from JEE Main 2019, 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.