$A$ mixture $X$ containing $0.02 \, mol$ of $[Co(NH_3)_5SO_4]Br$ and $0.02 \, mol$ of $[Co(NH_3)_5Br]SO_4$ is dissolved in water to make a $2 \, L$ solution.
$1 \, L \, of \, X + \text{Excess of } AgNO_3 \rightarrow Y \, mol \, of \, ppt.$
$1 \, L \, of \, X + \text{Excess of } BaCl_2 \rightarrow Z \, mol \, of \, ppt.$
Then $Y$ and $Z$ are respectively ...............

Given below are two statements:
Statement-$I$: Hybridisation,shape,and spin-only magnetic moment of $K_{3}[Co(CO_{3})_{3}]$ are $sp^{3}d^{2}$,octahedral,and $4.9 \ BM$ respectively.
Statement-$II$: Geometry,hybridisation,and spin-only magnetic moment values $(BM)$ of the ions $[Ni(CN)_{4}]^{2-}$,$[MnBr_{4}]^{2-}$,and $[CoF_{6}]^{3-}$ respectively are square planar,tetrahedral,octahedral; $dsp^{2}$,$sp^{3}$,$sp^{3}d^{2}$ and $0, 5.9, 4.9$.

Which of the following compounds is brown coloured?

Identify the geometrical isomers of the following complexes:

Select the incorrect statement.

Which of the following statements is correct?