MCQ
The complex that violates the Sidgwicks's rule of $EAN$ is
- APotassium ferrocyanide
- BHexamine cobalt $(III)$ Chloride
- ✓Tetramine copper $(II)$ sulphate
- DPotassium dichlorodioxalato cobaltate $(III)$
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(Formation of) (Best synthesis by)
(Given atomic member $\mathrm{V}=23, \mathrm{Mn}=25, \mathrm{Cr}=24$ )