A NiCd Battery Uses Nickel and Cadmium to Produce a Potential

question 17

Multiple Choice

A NiCd battery uses nickel and cadmium to produce a potential difference.Using these equations,answer the following questions.
I.2NiO(OH) _(s) + 2H₂O _(l) + 2 e¯ $\rarr$ 2Ni(OH) _{2 (s)} + 2 OH¯ _(aq)
II.Cd_(s) + 2OH¯ _(aq) $\rarr$ Cd(OH) _{2 (s)} + 2e¯
III.Cd _(s) + 2NiO(OH) _(s) + 2 H₂O _(l) $\rarr$ 2 Ni(OH) _{2 (s)} + Cd(OH) _{2 (s)}
Which equation represents what takes place at the anode?

• A)I
• B)II
• C)III
• D)I and II

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