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JAMB Chemistry 2014 Question 25

Question 25

Electrolysis

How many faraday of electricity is required to produce 0.25 mole of copper?

  1. A.1.00 F
  2. B.0.01 F
  3. C.0.05 F
  4. D.0.50 F
Show the answer and explanation

Answer: D (0.50 F)

Explanation

Each mole of Cu2+ needs 2 F, so 0.25 mol needs 0.25 × 2 = 0.50 F.