The coordination number and the oxidation state of the element 'E' in the complex `[E(en)_2(C_2O_4)]NO_2` (where `(en)` is ethylenediamine) are, respectively

The coordination number and the oxidation state of the element 'E' in the complex [E(en)_2(C_2O_4)]NO_2 (where (en) is etylenediamine ) are , respectively ________.

The co-ordination number and the oxidation state of the element 'M' in the complex [M(en)_2(C_2O_4)]NO_2 [where (en) is ethan-1, 2 diamine] are respectively

The co-ordination number and the oxidation state of an element 'E' in the complex [E(en)_(2)(C_(2)O_(4))]NO_(2) (where (en) is ethylene diamine), respectively are

The co-ordination number and the oxidation state of the element .M. in the complex [M(en)_2(C_2O_4)] NO_2 {where (en) is ethan-1, 2-diamine} are respectively