Question #e56f0 Chemistry Electrochemistry Oxidation Numbers 1 Answer Sunayan S Jul 8, 2017 +5 Explanation: Suppose, oxidation state of N is x. Oxidation state of #O# and #K# are respectively (-2) and (+1). So, #1+x+3×(-2)=0# as a neutral compound has 0 ox. state. #=>x=+5#(ans.) Answer link Related questions How do oxidation numbers relate to electron configuration? How do oxidation numbers relate to valence electrons? How do oxidation numbers vary with the periodic table? How do you calculate the oxidation number of an element in a compound? What is the oxidation number for sulfur? What is the oxidation number for carbon? What is the oxidation number for copper? What is the oxidation number for nitrogen? What is the oxidation number for oxygen? Why is the oxidation state of noble gas zero? See all questions in Oxidation Numbers Impact of this question 4664 views around the world You can reuse this answer Creative Commons License