Aqueous solution of $Ni^{2+}$ contains $[Ni(H_2O)_6]^{2+}$ and its magnetic moment is $2.83 \, BM$. When ammonia is added to it,comment on the magnetic moment of the solution.

Select the correct code of $TRUE$ and $FALSE$ for the given statements:
$(a)$ Peroxide ion as well as dioxygen molecule both are paramagnetic species.
$(b)$ In the set of isomers,$[Cr(H_2O)_6]Cl_3$ and $[CrCl(H_2O)_5]Cl_2 \cdot H_2O$,both compounds can easily lose water molecules on treatment with conc. $H_2SO_4$.
$(c)$ During the transformation $NO \to NO^+$,bond length decreases and magnetic behavior changes from paramagnetic to diamagnetic.
$(d)$ An ether is more volatile than an alcohol,both having the same molecular formula.

How many geometrical isomers does $[Pt(NH_3)(Br)(Cl)(Py)]$ have?

Which type of isomerism is exhibited by the complexes $[Co(NH_3)_5SO_4]Br$ and $[Co(NH_3)_5Br]SO_4$?

The calculated spin-only magnetic moment values in $BM$ for $[FeCl_4]^-$ and $[Fe(CN)_6]^{3-}$ are

The complex with a maximum number of stereoisomers is