Question 10.4 Find the oxidation state of sodium in Na2O2.
Class XI The s-Block Elements Page 305
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Vinu4141
Concpet:- Na2O2 is a peroxide and in peroxide , oxidation state of oxygen must be -1.
Let the oxidation state of Na is x Na2O2 contains a peroxide linkage in which O has an oxidation state of -1. e.g., 2x+ 2(-1) = 0 2x = 2 => x = +1 Hence, oxidation state of Na is +1
Each oxygen in a peroxide is assigned a formal charge of -1. Since sodium peroxide is neutral overall, each sodium atom is assigned an oxidation number of +1.
Answers & Comments
Let the oxidation state of Na is x
Na2O2 contains a peroxide linkage in which O has an oxidation state of -1.
e.g., 2x+ 2(-1) = 0
2x = 2 => x = +1
Hence, oxidation state of Na is +1
Verified answer
Each oxygen in a peroxide is assigned a formal charge of -1. Since sodium peroxide is neutral overall, each sodium atom is assigned an oxidation number of +1.