What was the historical practice aimed at turning base metals into gold or silver?

• A. Chemistry
• B. Metallurgy
• C. Astrology
• D. Alchemy

Answer: (D)

Turning base metals into gold or silver was the aim of alchemy. Alchemy blends early experimentation with philosophical ideas, centered on the belief that metals could be transformed by a hidden essence or substance, sometimes sought through the legendary philosopher's stone. This tradition, flourishing in medieval and Renaissance times, sought transmutation as its core goal, even as it included practical lab work that foreshadowed later chemistry. Chemistry, by contrast, develops systematic study of matter, reactions, and properties; metallurgy focuses on extracting, refining, and shaping metals. Astrology shows up in some alchemical lore but does not define the practice. So, the historical practice aimed at turning base metals into gold or silver is alchemy.