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
The colour of ${(N{H_4})_2}S{O_4}Fe{(S{O_4})_3}.24{H_2}O$ is
Transition elements show high melting points. Why ?
The alloy of steel that is used in making automobile parts and utensils
The ability to form complex compounds by the transitional metal ion is due to
For the ions $Zn ^{2+}, \,Ni ^{2+}$ and $Cr ^{3+}$ which among the following statements is correct ?
(Atomic number of $Zn =30,\,Ni =28$ and $Cr =24$ )