Final answer:
The names of Electrodes A and B are Anode and Cathode (option A). In a galvanic cell, the anode is where oxidation and loss of electrons occur and is negative, while the cathode is where reduction and gain of electrons take place and is positive.
Step-by-step explanation:
The names of the Electrodes A and B in an electrochemical cell are Anode and Cathode, respectively. The anode is the electrode at which oxidation occurs and is generally the negative electrode in a galvanic cell, while the cathode is where reduction occurs and is usually the positive electrode.
For the galvanic cell in question, with solid zinc at the anode and solid copper at the cathode, the half-reactions are:
- Oxidation at the anode: Zn(s) → Zn2+(aq) + 2e−
- Reduction at the cathode: Cu2+(aq) + 2e− → Cu(s)
Therefore, the anode is solid zinc and undergoes oxidation, making it the negative electrode. The cathode is solid copper and undergoes reduction, making it the positive electrode.