Question 13
Metals and their CompoundsWhich of the following sets of metals dissolves in dilute HCl?
- A.Fe, Sn and Cu
- B.Mg, Fe and Cu
- C.Mg, Sn and Fe
- D.Cu, Mg and Sn.
Show the answer and explanation
Answer: C (Mg, Sn and Fe)
Explanation
Metals above hydrogen in the activity series (Mg, Fe, Sn) displace hydrogen from dilute acid. Copper is below hydrogen, so any set with Cu is wrong.