Q19 / 200 · Manipal (MET) 2012 · Chemistry

Out of $\mathrm{Cu}, \mathrm{Ag}, \mathrm{Fe}$ and Zn , the metal which can displace all others from their salt solution, is

Correct answer
A
Zn
B
Cu
C
Ag
D
Fe

Solution

The metal placed above in electrochemical series can displace the metals placed below from their salt solution. The order of given metals in the series is $\mathrm{Zn}, \mathrm{Fe}$, $\mathrm{Cu}, \mathrm{Ag}$. Thus, Zn metal can displace all other three metals from their salt solutions.

Hence, the correct answer is option: 'A'.

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