Question

colour of cupric oxide​

Answer 1

Answer:

Under normal oxidizing conditions CuO produces clear green colors in most glazes. The shade of green depends not only on the amount but also on other oxides present (i.e. lead in larger amounts will enhance and darken the green, the presence of alkalies or high boron will shift it toward blue).

Color of cuprous oxide is red.

Answer 2

the colour of cupric oxide is black

Cupric oxide is a black powder

stay safe ND have a nice day