Which of the following is arranged in order of increasing melting point?
$Zn < Cu < Ni < Fe$
$Fe < Ni < Cu < Zn$
$Ni < Fe < Zn < Cu$
$Cu < Zn < Fe < Ni$
The melting point of $Zn$ is lower as compared to those of the other element of $3d$ series because
Which metal is present in brass, bronze and German silver
Out of $\mathrm{Cu}_{2} \mathrm{Cl}_{2}$ and $\mathrm{CuCl}_{2}$, which is more stable and why ?
Which of the following has maximum first ionisation energy ?