$Zn$ and $Hg$ belong to the same group, they differ in many of their properties. The property that is shared by both is
They form oxide readily
They react with steam readily
They react with hot concentrated sulphuric acid
They react with hot sodium hydroxide
While filling up of electrons in the atomic orbitals, the $4 s$ orbital is filled before the $3 d$ orbital but reverse happens during the ionisation of the atom. Explain why?
The most malleable of all the metals is
$\operatorname{Zr}\,(\mathrm{Z}=40)$ and $\mathrm{Hf}\,(\mathrm{Z}=72)$ have similar atomic and ionic radii because of :
Which of the following complex will show maximum paramagnetism ?
Misch metal an alloy of