MCQ
Geometrical as well as optical isomerism is shown by
- A$[Cr(C_2O_4)_3]^{-3}$
- B$[Co(NH_3)_3 Cl_3]$
- ✓$[Cr(H_2O)_2 (C_2O_4)_2]^-$
- D$[Co(en)Cl_4]^-$
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[At. nos. $Zn = 30, Sc = 21, $$Ti = 22, Cr = 24$]