Question

What is the oxidation number of chromium in chromyl chloride?

• A. 3
• B. 6
• C. 4
• D. none of these

Answer 1

Answer: (B)

The oxidation number of Cr in chromyl chloride $(Cr{O}_{2}C{l}_2)$ can be calculated as follows: $x+2(-2)+2(-1)=0$ $x-4-2=0$ $x=+6$