Which one of the following has the maximum number of unpaired electrons
$M{g^{2 + }}$
$T{i^{3 + }}$
${V^{3 + }}$
$F{e^{2 + }}$
'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.
The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration
$\mathrm{E}^{\circ}$ of $\mathrm{Cu}$ is $+0.34 \mathrm{~V}$ while that of $\mathrm{Zn}$ is $-0.76 \mathrm{~V}$. Explain.
In making gun-berrel, the steel used is
Which of the following statement(s) is(are) correct with reference to the ferrous and ferric ions