Question

Which of the following is the correct order in which metals displace each other from the salt solution of their salts?

• A. $Zn$, $Al$, $Mg$, $Fe$, $Cu$
• B. $Cu$, $Fe$, $Mg$, $Al$, $Zn$
• C. $Mg$, $Al$, $Zn$, $Fe$, $Cu$
• D. $Al$, $Mg$, $Fe$, $Cu$, $Zn$

Answer 1

Answer: (C)

$Mg$, $Al$, $Zn$, $Fe$, $Cu$

Answer 2

In reactivity series, ${Mg > Al > Zn > Fe > Cu}$ ${->[\text{Reactivity decreases}]}$ Hence, $Mg$ can displace $Al$, $Al$ can displace $Zn$ and so on.