
Oxidation number of Fe in is?
Answer
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Hint: In a neutral molecule, algebraic sum of oxidation number of all atoms in a compound must be zero. The oxidation number of oxygen is mostly -2. In this molecule, the oxidation number of carbon is +3.
Complete step by step answer:
Oxidation number is a number assigned to an element that represents the number of electrons lost or gained by an atom of that element of compound.
Following are some rules to determine oxidation number.
- In elements, each atom bears an oxidation number of zero in the free or uncombined state.
- Oxidation number of oxygen is mostly -2 but in peroxides and superoxide exceptions are there and when oxygen is bonded to fluorine it has an oxidation number like +1, +2.
- In a neutral molecule, the algebraic sum of the oxidation number of all atoms in a compound must be zero and in polyatomic ion, the algebraic sum of the oxidation number of atom of ion is equal to charge on the ion.
In a given molecule, let us consider the oxidation number of Fe as x.
As we know, the oxidation number of oxygen is -2 and as there are four oxygen atoms, the oxidation number of four oxygen atoms is -8.
-as we know carbon can have variable valency and has no charge so sum of oxidation number of all atoms must be zero, so sum of oxidation number of both carbon atoms is +6 so each carbon atom has oxidation number as +3.
x + 2(3) + 4 (-2) = 0
x + 6 - 8 = 0
x - 2 = 0
x = +2
The oxidation number of Fe in is +2.
Note: In all its compounds, fluorine has oxidation number as -1. In a neutral molecule, the algebraic sum of the oxidation number of all atoms in a compound must be zero.
Complete step by step answer:
Oxidation number is a number assigned to an element that represents the number of electrons lost or gained by an atom of that element of compound.
Following are some rules to determine oxidation number.
- In elements, each atom bears an oxidation number of zero in the free or uncombined state.
- Oxidation number of oxygen is mostly -2 but in peroxides and superoxide exceptions are there and when oxygen is bonded to fluorine it has an oxidation number like +1, +2.
- In a neutral molecule, the algebraic sum of the oxidation number of all atoms in a compound must be zero and in polyatomic ion, the algebraic sum of the oxidation number of atom of ion is equal to charge on the ion.
In a given molecule, let us consider the oxidation number of Fe as x.
As we know, the oxidation number of oxygen is -2 and as there are four oxygen atoms, the oxidation number of four oxygen atoms is -8.
-as we know carbon can have variable valency and
The oxidation number of Fe in
Note: In all its compounds, fluorine has oxidation number as -1. In a neutral molecule, the algebraic sum of the oxidation number of all atoms in a compound must be zero.
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