Which of the following sets of oxidation numbers is NOT correct? KMnO4 : K + 2, Mn + 6, O - 2 NaCHO2 : Na + 1, C + 2, H + 1, O - 2 Zn (OH) 2 : Zn + 2, O - 2, H + 1 SCl2 : S + 2, Cl - 1

Question

Chemistry

Sara Walls

15 February, 03:41

Which of the following sets of oxidation numbers is NOT correct? KMnO4 : K + 2, Mn + 6, O - 2 NaCHO2 : Na + 1, C + 2, H + 1, O - 2 Zn (OH) 2 : Zn + 2, O - 2, H + 1 SCl2 : S + 2, Cl - 1

+3

Answers (1)

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Johnny Shields · Answer 1

KMnO4 has the incorrect set of oxidation numbers. Whenever there is an alkali metal, it has an oxidation number of + 1. As you can see, K is said to have an oxidation number of + 2, so it is incorrect.