JEE Main · 2022 · Shift-IeasyIEQ-054

The solubility of AgCl will be maximum in which of the following?

Ionic Equilibrium · Class 11 · JEE Main Previous Year Question

Question

The solubility of AgCl will be maximum in which of the following?

Options
  1. a

    0.01 M HCl

  2. b

    0.01 M KCl

  3. c

    Deionised water

  4. d

    0.01 M AgNO3\mathrm{AgNO_3}

Correct Answerc

Deionised water

Detailed Solution

Common ion effect: Adding a common ion (Ag+\mathrm{Ag^+} or Cl\mathrm{Cl^-}) decreases the solubility of AgCl.

Step 1 — Analyse each option:

(1) 0.01 M HCl: Provides Cl\mathrm{Cl^-} (common ion) \rightarrow suppresses dissolution \rightarrow low solubility ✗

(2) 0.01 M KCl: Provides Cl\mathrm{Cl^-} (common ion) \rightarrow suppresses dissolution \rightarrow low solubility ✗

(3) Deionised water: No common ions \rightarrow maximum solubility ✓

(4) 0.01 M AgNO3\mathrm{AgNO_3}: Provides Ag+\mathrm{Ag^+} (common ion) \rightarrow suppresses dissolution \rightarrow low solubility ✗

Answer: Option (3) — Deionised water

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