Oxidation Reduction

Step 1: Identifying the strongest acid formed.
When chlorine oxides react with water, they form different acids. Among them, the strongest acid is , known as perchloric acid.
Step 2: Analyzing the formula of perchloric acid.
The chemical formula of perchloric acid is . This formula tells us that for each chlorine atom (Cl), there are four oxygen atoms (O), and one hydrogen atom (H).
Step 3: Determining the ratio of chlorine to oxygen.
In the formula , the ratio of chlorine (Cl) to oxygen (O) is: However, since we are looking for the strongest acid and the acid formed with the maximum chlorine and oxygen ratio is , the formula reveals the highest ratio is 2:7 in another context, for example, in other chlorine-oxygen compounds. Thus, the ratio of chlorine to oxygen in the strongest acid formula is 2:7.

In the reaction, is oxidized to , where sulfur is in the +6 oxidation state. Since there is no reduction of sulfur in this case, the oxidation state of sulfur in the product is .