Consider the following two carbonyl compounds
(i) `[Tc(CO)_(6)]^(+) and (ii)[Nb(CO)_(6)]^(-)`
Select incorrect statement(s) for given carbonyl compounds.

Options

A. `{Tc(CO)_(6)]^(+)` acts as reducing agent and `[Nb(CO)_(6)]^(-)` acts as oxidizing agent
B. `[Nb(CO)_(6)]^(-)` acts as reducing agent and `[Tc(CO)_(6)]^(+)` acts as oxidizing agent
C. `"Nb-C"` bond order in `[Nb(CO)_(6)]^(-)` is greater than in `{Tc(CO)_(6)]^(+)`
D. "CO" bond order is greater in `[Nb(CO)_(6)]^(-)` than in `[Tc(CO)_(6)]^(+)`

Answer

A, B, D