Which have melting point below $500\,^{\circ} C$.
$Zn ,\, Cd$
$Ag , \,Cu$
$Cd , \,Cu$
$Ag , \,Zn$
Highest $(+7) $ oxidation state is shown by
Calculate the number of unpaired electrons in the following gaseous ions: $Mn ^{3+}, Cr ^{3+}, V ^{3+}$ and $T i^{3+} .$ Which one of these is the most stable in aqueous solution?
In the series $Sc(Z = 21)$ to $Zn(Z = 30)$ , the enthalpy of atomization of _____ is the lowest
The correct order of decreasing third ionisation enthalpy of $Ti, \,V,\, Cr,\, Mn$ is
Explain trends in $M^{2+}/M$ standard electrode potentials.