Question

name the compound i)Na3[Cr(en)3

ii)[Co(NH2)2(No2)2(C5H5N)2]No3​

Answer 1

Answer:

Oxidation state can be found by finding the charge on the transitional metal in the complex ion, Therefore in [Co(NH3)5Cl]2+ solving [ Co + (5*0) + (-1) = +2 ] gives Co=+3. Therefore the oxidation state of Co is +3.