The process of the isolation of a metal by dissolving the ora in a suitable chemical regent followed by precipitaiton of the matal by a more electropositive metal is called:

Options

A. electrometallugry
B. hydrometallurgy
C. electro-refining
D. zone refining.

Answer

B

Explanation

A hydrometallurgical process for the extraction of metals from ores, concentrates, or secondary materials essentially contains three basic steps-dissolution of the valuable metal in the aqueous solution (leaching) purification of leach solution and subsequent recovery of metal from the purified solutions either by electroysis or by adding some electropositive metal to it.