Explain `[Co(NH_3)_6]^(3+)` is an inner orbital complex whereas `[Ni(NH_3))6]^(2+)` is an outer orbital complex.

What are inner and outer orbital complexes ?

Explain that [Co(NH_3)_6]^(3+) is a low spin complex while [CoF_6]^(3-) is a high spin complex.

Find Oxidation state on a complex [Ni(NH_3)_6]^(2+) .

[Co(NH_3)_6]^(3+) is an............. orbital complex and is............. in nature.

[Cr(NH_3)_6]^(3+) is paramagnetic while [Ni(CN)_4]^(2-) is diamagnetic. Explain why?

Find the oxidation number of central atom : [Ni(NH_3)_6]^(+2)

Which of the following are outer orbital complexes ?

Consider the following two complex ions: [CoF_6]^(3-) and [Co(C_2O_4)_3]^(3-) . Which of the following statement(s) is/are false? I. Both are octahedral. II. [Co(C_2O_4)_3]^(3-) is diamagnetic while [CoF_6]^(3-) is paramagnetic. III. Both are outer orbital complexes. IV. Inboth the complexes the central metal is in the same oxidation state.

True of False : Both [Fe(CN)_6]^(4-) and [FeF_6]^(3-) are outer orbital complexes.