Question

What do you mean by Redox reaction Give example A shiny brown coloured elements,X, on heating in air becomes black in colour name the elements X and black coloured compound formed 1+1+1/2+1/2+2 write chemical equation also

Answer 1

Explanation:

the element x must be copper because copper is ashiny brown coloured element which on heating in air combine with o2 of the air to form black copper oxide...