Transition elements are coloured
Due to small size
Due to metallic nature
Due to unpaired $d -$ electrons
All of these
The correct order of decreasing third ionisation enthalpy of $Ti, \,V,\, Cr,\, Mn$ is
Stainless steel is an alloy of
How do the oxidation states of the elements vary in the transition series?
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 $Cr =24$ )
Electrons in a paramagnetic compound are