Question

55. You are given samples of three metals — sodium, magnesium and copper.suggest any two activities
arrange them in order of their decreasing reactivities.​

Answer 1

Answer:IRON,

NICKLE ,COBALT

Explanation:

Answer 2

Answer:

So, the arrangement is started from the decreased ones to the increased reactive series.

Copper, Magnesium, Sodium.

Hope this answer helps you!