What type of reactions are the following equations ?

MgCO3 -----> MgO + CO2

Cl2 + 2KI ---> 2KCl + I₂

4Fe + 3O₂-------> 2Fe₂O₃

Zn(No3)2 + Na2S ------> ZnS + 2NaNO3

Question

What type of reactions are the following equations ?

MgCO3 -----> MgO + CO2
Cl2 + 2KI ---> 2KCl + I2
4Fe + 3O2 ------->
2Fe2O3
Zn(No3)2 + Na2S ------> ZnS + 2NaNO3

Nandini Singh · Answer

THE REACTION ARE THE FOLLOWING:
1 Decomposition reaction
2 Displacement reaction
3 Combination reaction
4 Displacement reaction

What type of reactions are the following equations ? MgCO3 -----> MgO + CO2 Cl2 + 2KI ---> 2KCl + I2 4Fe + 3O2 -------> 2Fe2O3 Zn(No3)2 + Na2S ------> ZnS + 2NaNO3