Question

Na3[cr (c2o4)3] ki coordination number

Answer 1

Na3[cr (c2o4)3]

#Oxidation number of the following coordination compound comes to be 3.

#This is because the compound outside the coordination entity is Na3 which has the valency 3.

#Hence the valency of the coordination compound will also be 3 so that the entire compound is balanced abs net charge comes to be zero as depicted by the compound.