Question

tell the reason of all .....please​

Answer 1

Answer:

as Mg is more reactive than Zn that's why it's not a displacement reaction

and all other are reactive

Answer 2

Answer:

This reaction does not occur under the normal conditions, because Mg is more reactive than Zn.

The reaction should go in the reverse:

Zn + MgSO4 ← Mg + ZnSO4