'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.
$A$ and $E$ only
$B$ and $C$ only
$A$ and $D$ only
$B$ and $D$ only
Horn silver is
Amongest following the lowest degree of paramagnetism per mole of the compound at $298 K$ will be shown by
Permanent magnet is made from
Which does not form amalgam
Which of the following order is not correct