The concentration of ZnCl2 solution will change when it is placed in a container which is made of:

1. Al 2. Cu
3. Ag 4. None
Subtopic:  Electrochemical Series |
 73%
From NCERT
AIPMT - 1998
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. The reason is:
 

1. A thin layer of Ag is formed on Cu
2. More voltage is required
3. Ag+ ions are completely removed from the solution
4. Less availability of Ag+ ions, as Cu can not displace Ag from [Ag(CN)2] ion
Subtopic:  Electrochemical Series |
 63%
AIPMT - 2002
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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