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Question #44089

Difficulty: 8/10 | 🟢 Free

The Question

To study redox precipitation constraints, solid silver hypochlorite, \ceAgClO(s)\ce{AgClO(s)}, is added to an aqueous solution. The hypochlorite ion undergoes disproportionation to chlorate and chloride ions, superseding simple solubility equilibrium. \ Given the following standard reduction potentials and solubility product constants at 298 K298\text{ K}: \ E\ceClO−/Cl−∘=0.89 VE^\circ_{\ce{ClO^-/Cl^-}} = 0.89\text{ V} \ E\ceClO3−/ClO−∘=0.62 VE^\circ_{\ce{ClO_3^-/ClO^-}} = 0.62\text{ V} \ Ksp(\ceAgClO)=10−4K_{sp}(\ce{AgClO}) = 10^{-4} \ Ksp(\ceAgCl)=10−10K_{sp}(\ce{AgCl}) = 10^{-10} \ Assume 2.303RTF=0.06 V\frac{2.303RT}{F} = 0.06\text{ V}. \ Determine the equilibrium constant (KeqK_{eq}) for the following overall transformation: \ 3\ceAgClO(s)⇌2\ceAgCl(s)+\ceAg+(aq)+\ceClO3−(aq)3\ce{AgClO(s)} \rightleftharpoons 2\ce{AgCl(s)} + \ce{Ag+(aq)} + \ce{ClO_3^{-}(aq)}

Options

  • A.

    102610^{26}

  • B.

    101710^{17}

  • C.

    102410^{24}

  • D.

    101510^{15}

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Correct Answer

Step-by-Step Solution

Explanation

How the Examiner Thinks

Exception_Exposure

Learn to identify edge cases and boundary exceptions that JEE examiners hide in math problems.

Concepts Behind This Question

Common Ion Effect on Solubility|Disproportionation Constraints|Auto-Redox in Oxyacids

Why This Question Is Tricky

Common Mistakes

This problem tests the intersection of solubility equilibria and redox disproportionation.

The 'Hidden Variable' is the correct determination of the number of transferred electrons (n=4n=4) in the disproportionation of hypochlorite.

Students frequently misidentify this as n=1n=1 or n=2n=2 by failing to balance the half-reactions properly.

Furthermore, it tests the ability to correctly apply stoichiometric coefficients as exponents when coupling multiple KspK_{sp} expressions to derive the overall thermodynamic equilibrium constant.

Quick Facts About This Question

Question Information

SubjectChemistry
ChapterEquilibrium - Class 11 Part 1
ConceptCommon Ion Effect on Solubility
Difficulty8
Cognitive Load7
Target Solve Time160 sec
AccessFree