The electronic configuration for Neodymium is:
[Atomic Number for Neodymium 60]

The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion $({M^{n+}})$ exists in green colour....

The number of valence electrons present in the metal among ${\rm{Cr}},{\rm{Co}},{\rm{Fe}}$ and Ni which has the lowest enthalpy of atomisation is

Pair of transition metal ions having the same number of unpaired electrons is

Consider the following reactions
${\rm{A}} + \mathop {\mathop {{\rm{NaCl}}}\limits_{\scriptstyle{\rm{Little }}\atop \scriptstyle{\rm{ amount}}} + {{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4} \to {\rm{Cr}}{{\rm{O}}_2}{\rm{C}}{{\rm{l}}_2} + {\rm{ Side Products }}}\limits_{{\rm{ }}}$
$...

The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are :
A. ${\rm{C}}{{\rm{r}}^{2 + }}$
B. ${\rm{F}}{{\rm{e}}^{2 + }}$
C....

Choose the correct tests with respective observations.
(A) $CuS{O_4}$ (acidified with acetic acid) $ + {K_4}\left[ {Fe{{(CN)}_6}} \right] \to $ Chocolate brown precipitate.
(B) $...

Match List - I with List - II. List - I List - II (A) Bronze (I) (B) Brass (II) (C) UK silver coin (III)...

Consider the following reactions $$ \mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \xrightarrow[-\mathrm{H}_{2} \mathrm{O}]{\mathrm{KOH}}[\mathrm{~A}] \xrightarrow[-\mathrm{H}_{2} \mathrm{O}]{\mathrm{H}_{2} \mathrm{O}_{4}}[\mathrm{~B}]+\mathrm{K}_{2} \mathrm{SO}_{4} $$ The products $[\mathrm{A}]$ and $[\mathrm{B}]$, respectively are :

The molar mass of the water insoluble product formed from the fusion of chromite ore (${\rm{FeC}}{{\rm{r}}_2}{{\rm{O}}_4}$) with ${\rm{N}}{{\rm{a}}_2}{\rm{C}}{{\rm{O}}_3}$ in presence of ${{\rm{O}}_2}$ is _______ $...