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nkirotedoreen46

Answer:

It acts as a depolarizer in the dry cell

Explanation:

  • Simple cells such as dry cells experience two major defects which are a disadvantage over the other cells.
  • The two defects are polarization and local action.
  • Local action is the "eating away" of the zinc plate which is the negative electrode in a simple cell.
  • Polarization, on the other hand, is the formation of hydrogen gas on the positive plate of a simple cell.
  • A depolarizer such as manganese dioxide is used to overcome polarization in a simple cell.

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