KCET · Chemistry · General Principles and Processes of Isolation of Metals
Electrolytic refining is used to purify which of the following metals?
- A \( \mathrm{Cu} \) and \( \mathrm{Zn} \)
- B Ge and Si
- C \( \mathrm{Zr} \) and \( \mathrm{Ti} \)
- D \( \mathrm{Zn} \) and \( \mathrm{Hg} \)
Answer & Solution
Correct Answer
(A) \( \mathrm{Cu} \) and \( \mathrm{Zn} \)
Step-by-step Solution
Detailed explanation
Electrolytic Refining is used to purify Cu and \( \mathrm{Zn} \). In this method, impure metal is made anode and a strip of pure metal is
made cathode. They are put in a suitable electrolytic solution containing soluble salt of the same metal.
made cathode. They are put in a suitable electrolytic solution containing soluble salt of the same metal.
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