# What is the oxidation state of chromium in CrCl3?

Apr 20, 2018

$+ 3$

#### Explanation:

In this compound, $C r C {l}_{3}$, it has a net charge of $0$.

Chlorine is more electronegative than chromium, and so it will possess its usual state of $- 1$. There are three chlorine atoms in total, and so their total charge will be $- 1 \cdot 3 = - 3$.

Let $x$ be the oxidation number of chromium. Then we have,

$x - 3 = 0$

$x = 3$

And so, chromium would have an oxidation state of $+ 3$.