List of top Chemistry Questions on d -and f -Block Elements asked in AIEEE

Knowing that the Chemistry of lanthanoids $(Ln)$ is dominated by its $+3$ oxidation state, which of the following statements in incorrect ?

Identify the incorrect statement among the following

Which of the following factors may be regarded as the main cause of lanthanide contraction ?

Calomel $(Hg_2Cl_2)$ on reaction with ammonium hydroxide gives :

The atomic number of V, Cr, Mn and Fe are respectively 23, 24, 25 and 26.Which one of these may be expected to have the highest second ionisation enthalpy ?

Number of electrons transferred in each case when $KMnO_4$ acts as an oxidising agent to give $MnO_2,Mn^{2+},Mn(OH)_3$ and $MnO^{2-}_4$ are repectively