Question

Among the following ions, which one has the highest paramagnetism?

Options

• \[\ce{[Cr(H2O)6]^{3+}}\]

• \[\ce{[Fe(H2O)6]^{2+}}\]

• \[\ce{[Cu(H2O)6]^{2+}}\]

• \[\ce{[Zn(H2O)6]^{2+}}\]

Answer 1

\[\ce{[Fe(H2O)6]^{2+}}\]

Explanation:

The compound with highest no. of unpaired electrons has highest paramagnetism.