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MDCAT Chemistry QUESTION #7791
Question 1

Which is a strong electrolyte in aqueous solution?

  • Acetic acid
  • Ammonium hydroxide
  • Carbonic acid
  • Potassium iodide✔️
Correct Answer Explanation

Strong electrolytes dissociate completely. KI is an ionic salt → strong electrolyte. Acetic acid, NH₄OH, H₂CO₃ are weak electrolytes.