- 1(current)
Q. No.Which of the following materials will cause a change in the concentration of ZnCl₂ solution
when it is kept in a container made of them?
| 1. | Al | 2. | Cu |
| 3. | Ag | 4. | None of the above |
Subtopic: Electrochemical Series |
72%
Level 2: 60%+
AIPMT - 1998
Hints
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 |
64%
Level 2: 60%+
AIPMT - 2002
Hints
- 1(current)
Q. No.
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