Local action is normally prevented from taking place in a simple electric cell by

Physics WAEC 1988

Local action is normally prevented from taking place in a simple electric cell by

  • introducing an oxidising agent into the acid
  • not drawing current continuously for long periods
  • amalgamating the surface of the zinc plate checkmark
  • using a porous pot to isolate the zinc plate from the acid
  • using dilute sulphuric acid

The correct answer is: C

Explanation

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