The diamagnetic species is :

CHEMISTRY · Single correct · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry

Problem

The diamagnetic species is : (1)

[\text{Co}(\text{H}_2\text{O})_6]^{2+}

(2)

[\text{Ni}(\text{H}_2\text{O})_6]^{2+}

(3)

[\text{Co}(\text{NH}_3)_6]^{3+}

(4)

[\text{Ni}(\text{NH}_3)_6]^{2+}