Question

The ratio of oxygen atom having $-2$ and $-1$ oxidation numbers in $S_2{O}_8^{2-}$ is three.
If true enter 1, else enter 0.

• A. 1

Answer 1

The correct option is A 1
The ratio of oxygen atom having $-2$ and $-1$ oxidation numbers in $S_2{O}_8^{2-}$ is three as only one peroxy linkage is present.
So, we can see from the structure below that the number of oxygen atoms having $-2$ oxidation state is $6$ while those having $-1$ oxidation state is $2$. Hence, the ratio is $\frac{6}{2}=3$.