If equal volumes of ${\mathrm{AB}}_{2}$ and XY (both are salts) aqueous solutions are mixed, which of the following combination will give a precipitate of ${\mathrm{AY}}_{2}$ at $300$ K ? $(\mathrm{Given}{\mathrm{K}}_{\mathrm{sp}}(\mathrm{at}300\mathrm{K})$$\mathrm{for}{\mathrm{AY}}_{2}=5.2\times {10}^{-7})$ [JEE Main 2025, 2 Apr (Shift 1)]

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YESPYQ · Accepted Answer

Correct answer: c) $2.0\times {10}^{-2}\mathrm{M}{\mathrm{AB}}_{2},2.0\times {10}^{-2}\mathrm{M}\mathrm{XY}$. For precipitation of AY₂: Ksp = [A²⁺][Y⁻]² = 5.2 × 10⁻⁷ Check option C: [A²⁺] = 2.0 × 10⁻² [Y⁻] = 2.0 × 10⁻² Ion product = 8.0 × 10⁻⁶ > Ksp ⇒ Precipitation occurs

If equal volumes of \({\mathrm{AB}}_{2}\) and XY (both are salts) aqueous solutions are mixed, which of the following co…

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