Question: Which of the following is not an activated nickel catalyst preparation reaction?

Options

A : Ni(OH)2 + H2 ? Ni+H2O

B : Ni(CO)4 ? Ni + 4CO

C : 2Al·Ni + 6NaOH ? Ni + 2NaAlO3 + 3H2

D : NiCO3 + H2 ? Ni+H2O + CO2

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