MCQ
Which of the following is correct ?
- A$KMnO_4$ violet / purple / dark pink due to $d-d$ transition
- B$TiF_6^{-3}$ and $Cu_2Cl_2$ both are colorless
- C$AgCl,\,CrO_2Cl_2$ Color due to polarisation
- ✓$[Co(NH_3)_6]^{2+}\, <\, [Co(H_2O)_6]^{+2}$ absorbs light at higher $\lambda $