Which of the following sets of metals dissolves in dilute HCl?
- Fe, Sn and Cu
- Mg, Fe and Cu
-
Mg, Sn and Fe
- Cu, Mg and Sn
The correct answer is: C
Explanation
Mg, Sn and Fe all dissolve in dilute HCl because they are more reactive and have a greater tendency to lose electrons to form ions. In contrast, Cu does not readily dissolve in dilute HCl.