Question

which arrangement of metals among the following shows the increasing order of reactivity ? 1-gold < potassium < copper < aluminum 2-potassium < aluminum < copper < gold 3- copper< gold < aluminum ​< potassium
4- gold < copper < aluminum < potassium

Answer 1

Answer:

4

Explanation:

gold (Au) < copper (Cu) < aluminum(Al) < potassium (K)