Question

You are given samples of three metals sodium, Aluminium and copper suggest any 2 activites to arrange them in order of decreasing reactivity​

Answer 1

Answer:

Magnesium reacts slowly with cold water but rapidly with hot, boiling water, whereas copper does not react even with steam. This activity also shows that here sodium is the most reactive metal and copper is the least reactive metal. So, the order of their decreasing reactivity is : Sodium > Magnesium > Copper.