Question

Cr in $Cr{O}_{2}C{l}_2$ is present in + 6 oxidation state:

• A. True
• B. False

Answer 1

The correct option is A

True

$Cr{O}_{2}C{l}_2$
Let x be the oxidation number of Cr.
Oxidation number of O and Cl are -2 and -1 respectively.
We apply the rules for assigning oxidation number:
$x+2(-2)+2(-1)=0$

$x-4-2=0$
$Solving,x=+6$