🦷 DAT Exam Prep

The common ion effect causes:

A Increased solubility
B Decreased solubility of a salt when a common ion is added to the solution
C No change
D Increased ionization

✓ Correct Answer: Option B

Common ion effect: adding an ion already in solution shifts equilibrium via Le Chatelier, decreasing solubility (Ksp unchanged).

💡 Why is B) the correct answer?

The correct answer to the question "The common ion effect causes:" is Option B: Decreased solubility of a salt when a common ion is added to the solution.

The other options — A) Increased solubility, C) No change, D) Increased ionization — are incorrect for this DAT Exam Prep question. As explained above: Common ion effect: adding an ion already in solution shifts equilibrium via Le Chatelier, decreasing solubility (Ksp unchanged).

📚 About This DAT Exam Prep Practice Question

This 2-level DAT Exam Prep question from the General Chemistry topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free DAT Exam Prep practice test or use flashcards for spaced repetition review.

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