The transition metals exhibit higher enthalpies of atomisation due to
their ability to show variable oxidation states
the presence of incompletely filled $d-$ subshell
their ability to exist in the solid state with unpaired electrons
strong interatomic interaction aries because of having large number of unpaired electrons in their atoms
Which of the following order of atomic radius is not wrong
Due to covalent bonding, the transitional metals are
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
The atomic number of vanadium $(V)$, chromium $(Cr)$, manganese $ (Mn)$ and iron $(Fe) $ are respectively $ 23,\, 24, \,25 $ and $ 26 $ which one of these may be expected to have the highest second ionization enthalpy
The catalyst used in the contact process is