To find the standard potential of M³⁺/M electrode,the following cell is constituted : Pt/M/M³⁺(0.001 mol L⁻¹ )/Ag⁺(0.01 mol L⁻¹ )/Ag

The emf of the cell is found to be 0.421 volt at 298 K. The standard potential of half reaction M3⁺ + 3e⁻$$ \to $$ M at 298 K will be :

(Given $$E_{A{g^ + }\,/\,Ag}^ - $$ at 298 K = 0.80 Volt)

Which one of the following is an oxide?

The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal :

Fe₂O₃(s) + 3 CO(g) $$\rightleftharpoons$$ 2 Fe(1) + 3 CO₂(g)

Using the Le Chatelier’s principle, predict which one of the following will not disturb the equilibrium ?

The electronic configuration with the highest ionization enthalpy is :