The reaction which is taking place in nickel cadmium battery can be represented by which of the following equations?
The reaction which is taking place in nickel cadmium battery can be represented by which of the following equations?
A. `Cd+NiO_2 + 2H_2O to Cd(OH)_2 + Ni(OH)_2`
B. `Cd+ NiO_2 + 2OH^(-) to Ni + Cd(OH)_2`
C. `Ni+ Cd(OH)_2 to Cd to Ni(OH)_2`
D. `Ni(OH)_2 + Cd(OH)_2 to Ni + Cd + 2H_2O`
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Correct Answer - A
Nickel-Cadmium battery
Anode-Cd, Cathode-`NiO_2`, Electrolyte-KOH
`{:("At anode:", Cd_((s))+2OH_((aq)) to Cd(OH)_(2(s)) + 2e^(-)),("At cathode:",NiO_(2(s))+2H_2O_((l))+2e^(-) to Ni(OH)_(2(s))+2OH_((aq))^(-)) ,(,overlineunderline(Cd_((s))+NiO_(2(s))+2H_2O_((l))to Cd(OH)_(2(s))+Ni(OH)_(2(s)))):}`
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