Which of the following is $NOT$ a characteristic of the transition elements in the series from scandium to zinc?
The formnation of coloured cations
The presence of at least one unpaired electron in a $d-$ orbital of a cation
The ability to form complex ions
None of these
Electrons in a paramagnetic compound are
The element exhibiting most stable $ + \,2$ oxidation state among the following is
Which of the following will act as best oxidizing agents
Bullet-proof steel alloy is prepared by using
In nitroprusside ion, the iron exists as $Fe^{2+}$ and $NO$ as $NO^+$ rather than $Fe^{3+}$ and $NO$ respectively. These forms of ions are established with the help of