MDCAT Chemistry MCQ #2232

When mixing AgNO3 and NaCl, a white precipitate forms only if the ionic product (Qsp) exceeds the Ksp. This contrast is used to determine:

MDCAT Chemistry MCQ #2232

  1. Question 1

    Q1. When mixing AgNO3 and NaCl, a white precipitate forms only if the ionic product (Qsp) exceeds the Ksp. This contrast is used to determine:

    • A) The solution is saturated and no precipitate forms
    • B) The solution is unsaturated and precipitate forms
    • C) The solution is supersaturated and precipitate forms
    • D) The ionic product is exactly equal to the solubility product

    Answer: The solution is supersaturated and precipitate forms

    Explanation: Precipitation only occurs when the ionic product exceeds Ksp; if it is lower, the solution remains unsaturated and clear.