Question

Arrange the following metals in the decreasing order of reactivity.

• A. Sodium
• B. Iron
• C. Copper
• D. Gold

Answer 1

Reactivity of metals depends on their ability to lose electrons. Sodium is more reactive than iron as it loses electron easily, compared to Fe. Similarly Fe is more reactive than Cu and Cu is more reactive than Au. Hence, the reactivity order is sodium > iron> copper> gold.