Discussion
In the electrorefining of copper, the impure metal forms the
Answer: A
Correct answer: anode and the pure metal deposits at the cathode
The impure copper is the anode and dissolves; the copper ions are reduced onto a pure cathode. The purification comes from the potentials: more noble impurities such as gold and silver do not dissolve and fall as anode mud, from which they are recovered, while more active ones such as zinc and iron dissolve but are not deposited at the cathode potential used and remain in solution.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development