The colour of the coordination compounds depends

Question:

The colour of the coordination compounds depends on the crystal field splitting. What will be the correct order of absorption of wavelength of light in the visible region, for the complexes, [Co(NH3)6]3+, [Co(CN)6]3–, [Co(H2O)6]3+

(i) [Co(CN)6]3–> [Co(NH3)6]3+>[Co(H2O)6]3+

(ii) [Co(NH3)6]3+> [Co(H2O)6]3+> [Co(CN)6]3–

(iii) [Co(H2O)6]3+> [Co(NH3)6]3+> [Co(CN)6]3–

(iv) [Co(CN)6]3–> [Co(NH3)6]3+> [Co(H2O)6]3+

Solution:

Option (iii)   [Co(H2O)6]3+> [Co(NH3)6]3+> [Co(CN)6]3– is the answer.

Leave a comment

Close

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now