6. What is the name of the metallurgical process in which the ore is leached and the metal is extracted using electrolysis? a) Zone refining b) Hydrometallurgy c) Liquation d) Thermite process
Answer: b Explanation: Hydrometallurgy is a technique for extracting metals from their ores in the subject of extractive metallurgy. Hydrometallurgy is the process of extracting metals from ores, concentrates, and recycled or residual materials using aqueous solutions.
