Question

Extraction of silver from an argentiferous lead (Pb + Ag) involves:

• A. Distillation method
• B. Cupellation
• C. Pattinson's process
• D. Parke's process

Answer 1

The correct option is D Parke's process

Pattinson's Process is the method which is usually adopted for the desilverising lead.

Cupellation is a process where ores are treated under high temperatures and controlled operations to separate noble metals like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal.

The Parke's process is a process for removing silver from lead, during the production of bullion. It is an example of liquid-liquid extraction.

Hence, option D is correct.