Problem PageQuestion Suppose an iron atom in the oxidation state formed a complex with three hydroxide anions and three water molecules. Write the chemical formula of this complex.

The Question is incomplete here is the complete question " Suppose an iron atom in the oxidation state +3 formed a complex with three hydroxide anions and three water molecules. Write the chemical formula of this complex.

{Fe(OH)3(H20)3}

Explanation:

Oxidation state is the electron gained or lost by and atom, So if iron is in +3 state in formula it must have lost three electron.

We know that OH posses the oxidation state of -1 and water have zero oxidation state. SO, Let's take iron equal to y and find its oxidation state in the formula

y + 3 ( - 1 ) + 3 ( 0 ) = 0

y - 3 + 0 = 0

y-3=0

y= + 3

Hence it's proved that iron has +3 oxygen state.