Question

What happens when znco3 is heated in the absence of air give relevant equations

Answer 1

Answer:

Hi ! ZnCO₃ , when heated in the absence of air , gets converted to ZnO , and CO₂ gas is also evolved. This process , of converting carbonates ores into oxides , in the absence of air ( limited supply) , is known as calcination. This metal oxide , is later on converted to metal , by reducing it with Carbon.