Final answer:
In a dry cell battery involving silver and zinc, zinc will be the one to be spontaneously oxidized due to its higher position in the activity series compared to silver. Thus, the correct answer is: b) Zinc.
Step-by-step explanation:
In the context of a dry cell battery using oxidation-reduction reactions with silver and zinc, we need to determine which metal will spontaneously oxidize. It's important to consider the activity series, which tells us the tendency of metals to be oxidized. Zinc is above silver in the activity series, indicating that zinc is more readily oxidized than silver.
Therefore, when silver ions are in contact with zinc metal, silver ions will be reduced, and zinc metal will be oxidized. This means that in a battery involving silver and zinc, zinc will be spontaneously oxidized by the cations of the other metal, which are the silver ions.
Thus, the correct answer is: b) Zinc.