Question

What does the name chromium(II) oxide mean in terms of electrons lost and gained?

Answer 1

The oxidation state of Chromium is `+2`.

Explanation:

From the name Chromium(II) oxide we can conclude that Chromium has a `+2` oxidation state.

We know that oxygen has an oxidation state of `-2` except in the case of peroxide which is `-1` and `OF_2` the oxidation state is `+2`.

The formula unit of Chromium(II) oxide is `CrO`.