The d- and f- B...

Which of the following pairs of transition metal ions are the stronger oxidising agents in aqueous solution?

In the long form of periodic table, all the non-metals and metalloids are placed with :

The correct order of magnetic moments amongst following complex ions is:

Which one of the following complexes is not diamagnetic?

The correct increasing order of paramagnetism of
$$(i)\ MnSO_4.
 4H_2O$$
$$(ii)\ FeSO_4.
 7H_2O$$
$$(iii)\ NiSO_4.
 6H_2O$$
$$(iv)\ CuSO_4.
 5H_2O$$ is:

Transition metals form complexes because of:

The statement that is not correct for the periodic classification of elements is: 

The ionic radius of $$ _{57}La^{3+}$$ is 1.06 $$\overset oA$$ Which one the  following give values will be closest to the ionic radius  of $$ _{71}Lu^{3+}$$ ?

Which ine of the following statement about lanthanides is false?

Predict which pairs of ions is not coloured in aqueous solution ?