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JAMB Chemistry 2001 Question 24

Question 24

Electrolysis

A metal M displaces zinc from zinc chloride solution. This shows that

  1. A.M is more electronegative than zinc
  2. B.zinc is above hydrogen in the series
  3. C.M is more electropositive than zinc
  4. D.electrons flow from zinc to M.
Show the answer and explanation

Answer: C (M is more electropositive than zinc)

Explanation

A metal can only displace another metal from its salt if it is higher in the activity series, i.e. more electropositive.