Question

Oxidation state of osmium (Os) in $OsO_4$ is

• A. 4
• B. 6
• C. 7
• D. 8

Answer 1

Answer: (D)

8

Answer 2

$OsO _{4}$, Let oxidation state of $Os$ be $x$. $x+4 \times(-2)=0$ $\Rightarrow x=+8$