Which of the following is inner orbital complex as well as diamagnetic in nature ?

CHEMISTRY · Single correct · CBSE · Chemistry · Coordination Compounds · Coordination Compounds

Problem

Which of the following is inner orbital complex as well as diamagnetic in nature ? (1)

[Ir(H_2O)_6]^{3+}

(2)

[Ni(NH_3)_6]^{2+}

(3)

[Cr(NH_3)_6]^{3+}

(4)

[Co(NH_3)_6]^{2+}