1.
There are four complexes of Ni. Select the complex/es which will be attracted by magnetic field: (i) [Ni(CN)4_4]2−^{2-} (ii) [NiCl4_4]2−^{2-} (iii) [Ni(CO)4_4] (iv) [Ni(NH3_3)6_6]2+^{2+}