Question

What type of reaction in this Cuo + Mg given Mgo + Cu

Answer 1

hii Twinkle !
__________________________________________________________
Reaction :
CuO+ Mg-------> MgO+Cu 
Redox reaction 
___________________________________________________________

Answer 2

The above reaction is an example of single displacement reaction or just displacement reaction. Here Magnesium is more reactive than Copper therefore Mg displaces Cu from it's oxide and Cu is formed as a precipitate.