Question

Which one of the following complexes is an outer orbital complex ?
(a) [Co(NH₃)₆]³⁺
(b) [Mn(CN)₆]⁴⁻
(c) [Fe(CN)₆]⁴⁻
(d) [Ni(NH₃)₆]²⁺
(Atomic nos. : Mn = 25; Fe = 26; Co = 27, Ni = 28)

Answer 1

C IS CORRECT ANSWER.........

Answer 2

${\huge {\mathfrak {Answer :-}}}$

➡️ Option (C)

That's it..