The Salts X(NO₃)₂ and Y(NO₃)₂ (Where X⁺ and Y⁺ Are

question 113

Multiple Choice

The salts X(NO₃) ₂ and Y(NO₃) ₂ (where X⁺ and Y⁺ are metal ions) are dissolved in water to give a solution which is 0.1 M in each of them. Using the K_sp values listed below, decide which aqueous reagent, if any, will definitely precipitate X⁺ before precipitating Y⁺ from solution. Given K_sp values:XCl₂, 1 × 10⁻⁵ YCl₂, 1 × 10⁻¹⁰ X(OH) ₂, 1 × 10⁻¹⁰ Y(OH) ₂, 1 × 10⁻⁵

• A)1 M NH ₃
• B)1 M HCl
• C)1 M HNO ₃
• D)1 M NaCl
• E)None of these choices are correct.

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