I. Mn have a +2 oxidation number in MnCl₂
II. Mn have a +7 oxidation number in in KMnO₄
III. S have 0 and +2 oxidation numbers in K₂S₄O₆
IV. Cl have a -1 oxidation number in HCl
Explanation:
i. Mn have a +2 oxidation number in MnCl₂
Cl have a -1 oxidation number so in order to make the compound neutral the Mn need to have a +2 oxidation number.
II. Mn have a +7 oxidation number in in KMnO₄
O have a -2 oxidation number and K have +1 oxidation number so in order to make the compound neutral the Mn need to have a +7 oxidation number.
III. S have 0 and +2 oxidation numbers in K₂S₄O₆
O have a -2 oxidation number and K have +1 oxidation number. However this is more complicated to asses the oxidation number. Taking in account the chemical structure of K₂S₄O₆, two S atoms will have a 0 oxidation number and the other two S atoms will have a +4 oxidation number.
IV. Cl have a -1 oxidation number in HCl
H have a +1 oxidation number so in order to make the compound neutral the Cl need to have a -1 oxidation number.
Learn more about:
oxidation numbers
https://brainly.com/question/6710925
#learnwithBrainly
