True or False: Hydrometallurgical processes use aqueous solutions to recover valuable metals from spent lithium-ion batteries.
- True
- False
Answer: True
Hydrometallurgy: leaching with acids/bases dissolves Li, Co, Ni, Mn; followed by solvent extraction, precipitation. More environmentally friendly than pyrometallurgy. Critical for circular economy in EV supply chains. [[MoEFCC Guidelines, NCERT Chemistry Class 12]]