Of the metals tin, zinc, and aluminum, which is most likely to corrode?

Zinc is commonly known for its susceptibility to corrosion compared to tin and aluminum. When exposed to the environment, zinc tends to oxidize rapidly, forming a protective layer that slows further corrosion, but it is still the most prone of the three to corrode initially. This characteristic is particularly important in applications like galvanization, where zinc is used to protect steel and iron from rusting. Although aluminum and tin can also corrode, aluminum tends to form a strong oxide layer that protects it from further degradation, and tin, while also resistant to corrosion, has its own protective oxide layer. Therefore, zinc’s relative vulnerability to corrosion makes it the correct choice in this context.