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In which of the following compounds the oxidation state of the nickel atom is 0? -

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Question

In which of the following compounds the oxidation state of the nickel atom is 0?

Options

  • [Ni(H2O)6]Cl2

  • [Ni(NH3)6]Cl2

  • KNiCl3

  • Ni(CO)4

MCQ

Solution

Ni(CO)4

Explanation:

CO is a neutral ligand and the overall charge on the complex is 0 so Ni has 0 oxidation state.

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