Which of the following pair of elements cannot form an alloy
$Zn - Cu$
$Fe - Hg$
$Fe,\,C$
$Na,\,Hg$
Ionisation potential values of $d-$ block elements as compared to ionization potential value of $ f-$ block elements are
Which of the following is $NOT$ a characteristic of the transition elements in the series from scandium to zinc?
$CuSO_4(aq) + 4NH_3 \rightarrow X,$ then $X$ is
The correct formula of permanganic acid is