sum of oxidation number of all the oxygen atom in KO2 PbO2 and BaO2 is
Answers
Answer:
According to the book for a binary compound, first we assign the element with greater electronegativity its oxidation number (oxygen always -2 except in peroxides). So, we have -2 x2 =-2. So, each oxygen would have an oxidation number of -2.
Answer:
The sum of the oxidation number of all oxygen is -5/2
Explanation:
Oxidation number: The total number of electrons that an atom gains or loses in order to form a chemical bond with another atom is known as the oxidation number.
Let the oxidation number in KO₂, PbO₂, and BaO₂ be x, y, and z respectively.
KO₂ :
+1 (due to potassium) + 2x (due to oxygen) = 0
⇒ x = -1/2
PbO₂
+2 (due to lead ) + 2y (due to oxygen) = 0
⇒ y = -1
BaO₂
+2 (due to Barium) + 2z (due to oxygen) = 0
⇒ z = -1
Therefore, the sum of oxidation number (x + y + z) = -5/2.
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