Question

Electric copper wire is known for its high purity, typically exceeding 99%. This raises curiosity about other household objects that might predominantly consist of highly pure or unalloyed metals. Which of the following household items is most likely to be composed of a similarly high-purity metal?

a.Stainless steel kitchen utensils, such as cutlery or cooking pots.
b.Aluminum beverage cans commonly used for packaging soft drinks and other beverages.
c.Brass doorknobs and fixtures, frequently found in residential homes.
d.Zinc-coated galvanized steel used in certain household appliances or structural components.

Answer 1

Aluminum beverage cans are most likely to be made from a similarly high-purity metal as the copper used in electrical wires, because they are often made of high-purity aluminum, while the other household items listed are typically composed of alloys.

Step-by-step explanation:

Among the household items listed that could be composed of a high-purity metal similar to the high-purity copper used in electrical wires, the aluminum beverage cans are most likely to fit this criterion. Aluminum cans are often made of high-purity aluminum due to its corrosion resistance and lightweight properties, which make it ideal for containing and preserving drinks. While stainless steel kitchen utensils are durable, they are typically alloys composed of iron, chromium, nickel, and other metals. Brass doorknobs are generally made from a mixture of copper and zinc, and zinc-coated galvanized steel is an alloy designed for rust protection.