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In a nickel-cadmium battery, NiO(OH) is reduced to: Ni(OH)4, NiOH, NiO2, Ni, or Ni(OH)2

In a nickel-cadmium battery, NiO(OH) is reduced to:

Ni(OH)4, NiOH, NiO2, Ni, or Ni(OH)2

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