There are four complexes of Ni

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

Problem

There are four complexes of Ni. Select the complex(es) which will be attracted by magnetic field : (I)

[\text{Ni}(\text{CN})_4]^{2-}

(II)

[\text{NiCl}_4]^{2-}

(III)

\text{Ni}(\text{CO})_4

(IV)

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

(1) I only (2) IV only (3) II, III and IV (4) II and IV