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NEETChemistryElectrochemistry

What is the overall reaction during the discharge of a nickel-cadmium cell?

Options

  1. ACd (s) + 2Ni(OH) 3 (s) → CdO (s) + 2Ni(OH) 2 (s) + H 2 O (l)
  2. BCdO (s) + 2Ni(OH) 2 (s) + H 2 O (l) → Cd (s) + 2Ni(OH) 3 (s)
  3. CCd (s) + 2Ni(OH) 2 (s) → CdO (s) + 2Ni(OH) 3 (s) + H 2 O (l)
  4. DNone of the above

Correct answer

A. Cd (s) + 2Ni(OH) 3 (s) → CdO (s) + 2Ni(OH) 2 (s) + H 2 O (l)

Step-by-step solution

The overall reaction during discharge of a nickel-cadmium cell as: Cd (s) + 2Ni(OH) 3 (s) → CdO (s) + 2Ni(OH) 2 (s) + H 2 O (l).

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