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JAMB Chemistry 2003 Question 30

Question 30

Electrolysis

Which of the following is an electrolyte?

  1. A.Alcohol
  2. B.Sodium acetate solution
  3. C.Solid potassium hydroxide
  4. D.Mercury
Show the answer and explanation

Answer: B (Sodium acetate solution)

Explanation

Sodium acetate solution contains free ions that carry current and are decomposed. Solid KOH's ions cannot move, alcohol has no ions, and mercury conducts without decomposing.