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  • Help me answer: Which of the following processes does not involve oxidation of iron?

Which of the following processes does not involve oxidation of iron?

  • Option 1)

    Decolourization of blue CuSO_{4} solution by iron

  • Option 2)

    Formation of Fe(CO)_{5} from Fe

  • Option 3)

    Liberation of H_{2} from steam by iron at high temperature

  • Option 4)

    Rusting of iron sheets

 

Answers (1)

best_answer

As learnt in

Oxidation states -

Transition elements have a variety of oxidation states but the common oxidation state is +2 for 3d metals.

 

-

 

 The reaction goes as follows:

\overset{0}{Fe}+5CO\rightarrow \overset{0}{Fe}\left ( CO \right )_{5}

Clearly, there is no change in oxidation state of iron.


Option 1)

Decolourization of blue CuSO_{4} solution by iron

This option is incorrect

Option 2)

Formation of Fe(CO)_{5} from Fe

This option is correct

Option 3)

Liberation of H_{2} from steam by iron at high temperature

This option is incorrect

Option 4)

Rusting of iron sheets

This option is incorrect

Posted by

Aadil

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