Question

Which of the following is not a combination reaction ? *

-CaO(s)+H₂O(l) → Ca(OH)₂(aq)

-C(s)+O₂(ɡ) → CO₂(ɡ)

-2H₂(ɡ)+O₂(ɡ) → 2H₂O(l)

-Zn(s) + CuSO₄(aq ) → ZnSO₄(aq) + Cu(s)


plzzz guys answer me please...... ​

Answer 1

Answer:

4

Explanation:

It is displacement reaction.