Question

the colour of copper oxide is​

Answer 1

$\huge\underline\purple{Answer:-}$

there are two different Copper Oxides.

There is Copper (I) oxide - Cu2O, which is a red colour and Copper (II) oxide - CuO that is black.

Answer 2

Explanation:

Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO. A black solid, it is one of the two stable oxides of copper, the other being Cu₂O or cuprous oxide. As a mineral, it is known as tenorite