Question

Arrange all five metals (most active to least active).

a) H, Mg, Ag, Cu, Zn
b) Zn, Cu, Ag, Mg, H
c) H, Mg, Zn, Cu, Ag
d) Ag, Cu, Zn, Mg, H

Answer 1

The correct order of metals from most active to least active based on the activity series is 'H, Mg, Zn, Cu, Ag', making option c) the correct answer.

Step-by-step explanation:

To arrange the metals from most active to least active, we refer to the activity series, which ranks elements based on their tendency to be oxidized. Magnesium (Mg) is more active than zinc (Zn), and among the given metals, silver (Ag), copper (Cu), and hydrogen (H) are comparatively less active with Ag being one of the least active. According to the activity series, the correct arrangement from the most active to the least active would be:

1. Magnesium (Mg)
2. Zinc (Zn)
3. Hydrogen (H)
4. Copper (Cu)
5. Silver (Ag)

Hence, the correct answer is option c) H, Mg, Zn, Cu, Ag. This order is based on the general trend that alkali metals and alkaline earth metals are more reactive than transition metals and noble metals, with silver and copper ranking low in activity and magnesium ranking higher.