Question

arrange zine, iron, copper metals in decreasing order of their reacting ​

Answer 1

$\huge(Answer)$

☞We see, that Zinc is above Iron, Iron is above copper. So, Zinc is the most reactive among the three, and copper is the least reactive. This was your answer.

Explanation:

➜Arrangement of metal in decreasing order of reactivity are:

Sodium>Magnesium>Zinc>Iron>Copper