MDCAT Chemistry MCQ #2240

If a saturated solution of AgCl is prepared in 0.1 M NaCl instead of pure water, the solubility of AgCl changes because:

MDCAT Chemistry MCQ #2240

  1. Question 1

    Q1. If a saturated solution of AgCl is prepared in 0.1 M NaCl instead of pure water, the solubility of AgCl changes because:

    • A) Solubility increases due to the formation of a complex
    • B) Solubility remains the same as Ksp is constant
    • C) Solubility increases because NaCl is a strong electrolyte
    • D) Solubility decreases due to the common ion effect

    Answer: Solubility decreases due to the common ion effect

    Explanation: The presence of Cl- ions from NaCl shifts the AgCl equilibrium to the left, reducing its solubility compared to pure water.