Question

calculate the oxidation of Cl in HCl04​

Answer 1

Answer:

There is one H atom: (1)(+1) = +1 The oxidation number of O is -2. There are four O atoms here: (4)(-2) = -8 Therefore, the oxidation state of Cl is +7. NOTE: The maximum positive oxidation number for chlorine is +7, the same as its group number (VII).