Which of the following complex is an outer orbital complex?

Options

A. (a) `[Co(CH_3)_6]^(3+)`
B. (b) `[Mn(CN)_6]^(4-)`
C. (c) `[Fe(CN)_6]^(4-)`
D. (d) `[Ni(NH_3)_6]^(2+)`

Answer

D

Explanation

`{:("Complex ion",,,"Hybridiidization of central atom",),([Fe(CN)_6]^(4-),,,d^2sp^3(i n n er),),([Mn(CN)_6]^(4-),,,d^2sp^3(i n n er),),([Co(NH_3)_6]^(3+),,,d^2sp^3(i n n er),),([Ni(NH_3)_6]^(2+),,,sp^3d^2(outer),):}`