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JAMB Physics 2006 Question 22

Question 22

Current Electricity

The electrolyte in the Nickel-iron (Nife) accumulator is

  1. A.ammonium chloride solution.
  2. B.dilute tetraoxosulphate(VI) acid.
  3. C.copper tetraoxosulphate(VI) solution.
  4. D.potassium hydroxide solution.
Show the answer and explanation

Answer: D (potassium hydroxide solution.)

Explanation

The NiFe (alkaline) accumulator uses potassium hydroxide solution as its electrolyte; the lead-acid accumulator uses dilute sulphuric acid.