Question

what type of reaction is not possible as per principles of displacement reactions?
1 Mg+CuO ➡ MgO+Cu
2 Fe+CuSO4 ➡ FeSO4+Cu
3 2NaBr+Cl2 ➡ 2NaCL+Br2
4 Cu+ZnSO4 ➡ CuSO4+Zn

Answer 1

Answer:

your answer must be either 1st or 3rd

Explanation:

I am giving you suspicious answer because I am not sure

Answer 2

Answer:

I think the answer is

1)Mg+Cuo➡️Mgo+Cuo