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Which one of the following compounds is ...

Which one of the following compounds is not colured?

A

`Na_(2)[CuCI_(4)]`

B

`Na_(2)[CdCI_(4)]`

C

`[Cr(H_(2)O)_(6)]CI_(3)`

D

`[Co(NH_(3))_(6)]CI_(3)`

Text Solution

Verified by Experts

(b) Those complexes. In which at teast one unpaired electrons is found , show, colour due to d-d transition of electrons. The complex `Na_(2)[CdCI_(4]` has no unparied electron in Cd-atom . Hence it is colouries as no d-d transition can take place.
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