A Voltaic Cell Is Prepared Using Copper and Silver

question 7

Multiple Choice

A voltaic cell is prepared using copper and silver. Its cell notation is shown below. Cu(s) | Cu²⁺(aq) || Ag⁺(aq) | Ag(s)
Which of the following processes occurs at the cathode?

• A)Cu( s)→ Cu ²⁺( aq)+ 2e ⁻
• B)Cu ²⁺( aq)+ 2e ⁻ → Cu( s)
• C)Ag( s)→ Ag ⁺( aq)+ e ⁻
• D)Ag ⁺( aq)+ e ⁻ → Ag( s)
• E)Cu( s)+ 2Ag ⁺( aq)→ Cu ²⁺( aq)+ 2Ag( s)