Which of the following pairs involves isoelectronic ions
$M{n^{ + 3 }}$and $F{e^{+ 2}}$
$M{n^{ + 2}}$ and $F{e^{ + 3 }}$
$C{r^{+ 3 }}$ and $F{e^{ + 2}}$
$F{e^{+ 2}}$ and $C{o^{+ 2}}$
The metal ion which does not form coloured compound is
When $Cu^{2+}$ ion is treated with $KI$, a white precipitate is formed. Explain the reaction with the help of chemical equation.
'Spin only' magnetic moment is same for which of the following ions?
$A$. $\mathrm{Ti}^{3+}$ $B$. $\mathrm{Cr}^{2+}$ $C$. $\mathrm{Mn}^{2+}$ $D$.$\mathrm{Fe}^{2+}$ $E$. $\mathrm{Sc}^{3+}$
Choose the most appropriate answer from the options given below.
Chloro compound of vanadium has only spin magnetic moment of $1.73\, BM$. This vanadium chloride has the formula:
The term platforming is