Question

What happen when copper is burnt in air give the equation what type of reaction it is what happens when hydrogen gas is passed over the product obtained in step give the in this tab give the equation also?

Answer 1

Explanation:

When copper us burnt in air, it gets oxidized to form copper oxide

Cu+ O2-------->CuO

It is a composition reaction

when hydrogen gas is passed over copper oxide, then black copper oxide os reduced and brown copper metal is obtained

CuO +H2 -------> Cu +H2O