In which of the following is the oxidation state of the central atom +6? — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

**(A)** Chromyl chloride: $Cr$ is +6. <br>**(B)** Perchromic acid: $Cr$ is +6 (butterfly structure with 4 peroxo oxygens). <br>**(C)** Peroxodisulfate: $S$ is +6 (contains $-O-O-$ linkage). <br>**(D)** Permanganate: $Mn$ is +7.