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Select the correct order for the wavelen...

Select the correct order for the wavelength of absorption for the given complexes :

A

`[Cr(CN)_(6)]^(3-)=[CrCl_(6)]^(3-)=[Cr(NH_(3))_(6)]^(3+)=[Cr(H_(2)O)_(6)]^(3+)`

B

`[CrCl_(6)]^(3-)gt[Cr(H_(2)O)_(6)]^(3+)gt[Cr(NH_(3))_(6)]^(3+)gt[Cr(CN)_(6)]^(3-)`

C

`[Cr(CN)_(6)]^(3-)gt[Cr(NH_(3))_(6)]^(3+)gt[Cr(H_(2)O)_(6)]^(3+)gt[CrCl_(6)]^(3-)`

D

`[Cr(CN)_(6)]^(3-)gt[Cr(H_(2)O)_(6)]^(3+)gt[CrCl_(6)]^(3-)gt[Cr(NH_(3))_(6)]^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta_(0):CN^(-) gt NH_(3) gt H_(2)O gt Cl^(-)`
`Delta_(0) prop (1)/(lambda)`
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