Question

The unpaired electrons in Ni(CO)₄ are ______.

विकल्प

• zero

• one

• three

• four

Answer 1

The unpaired electrons in Ni(CO)₄ are zero.

Explanation:

Ni has no oxidation state. The electronic configuration is [Ar] 3d⁸ 4s² 4p⁰. In the presence of the strong ligand CO, electrons pair and the electronic configuration becomes [Ar] 3d¹⁰ 4s⁰ 4p⁰. Hence unpaired electrons are zero.