Question

3)Copper oxide is called red primer:
True or
False
​

Answer 1

Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO, it is one of the two stable oxides of copper, the other being Cu2O or copper(I) oxide (cuprous oxide).This red-coloured solid is a component of some anti fouling paints.

Here the answer will be " True".