Which alloy contains $Cu, Sn$ and $Zn$
Gun metal
Solder
Bell metal
German silver
The spin only magnetic moments (in $BM$) for free $\mathrm{Ti}^{3+}, \mathrm{V}^{2+}$ and $\mathrm{Sc}^{3+}$ ions respectively are (At.No. $Sc: 21; Ti : 22; V : 23)$
Hydrated $C{u^{ + 2}}$ ion will be
Assertion : Magnetic moment of $Dy$ is highest among lanthanoids.
Reason : Orbital motion contributes magnetic moment.
Which ion has maximum magnetic moment
Which of the following is decreasing order of $I.P_2$ ?