Which of the following reactions would require the use of an inert electrode when used in a voltaic cell? A) Cu(s)+ 2Ag⁺(aq)$\to$ 2Ag(s)+ Cu²⁺(aq) B) 3Cu(s)+ 2Au³⁺(aq)$\to$ 3Cu²⁺+ 2Au(s) C) Cu(s)+ 2Ag⁺(aq)$\to$ Cu²⁺(aq)+ 2Ag(s) D) Co(s)+ 2MnO₂(s)+ 2NH₄⁺(aq)$\to$ Co²⁺(aq)+ Mn₂O₃(s)+ 2NH₃(aq)+ H₂O( $\ell$ ) E) 3Zn²⁺(aq)+ 2Al(s)$\to$ 3Zn(s)+ 2Al³⁺(aq)

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Quizplus · Accepted Answer

An inert electrode is needed when there is no solid metal to act as an electrode. In reaction D, both reactants and products are either in aqueous or solid non-metallic form, requiring an inert electrode like platinum or graphite to facilitate electron transfer.

Which of the Following Reactions Would Require the Use of an Inert