Fe in Fe²( so⁴) 3 find the oxidation number
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Explanation:
Oxidation number of Fe in Fe₂(SO₄)₃ is +3
We know that charge on SO₄ is -2
Le the oxidation number Fe be x
Then
2x + (-2) × 3 = 0
or, 2x = 6
or, x = 3
Therefore, the oxidation number of Fe in Fe₂(SO₄)₃ is +3
Alternatively if the formula of a compound is A_xB_yAxBy then the oxidation number of A is +y while that of B is -x. From this also we can see that the oxidation number of Fe is +3
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