Discussion Forum



1)

Which of the following does not represent the correct order  of the property indicated?


A) $Sc^{3+}$ > $Cr^{3+}$ > $Fe^{3+}$ > $Mn^{3+}$ -ionic radii

B) Sc < Ti < Cr < Mn -density

C) $Mn^{2+}$ > $Ni^{2+}$> $Co^{2+}$ > $Fe^{2+}$-ionic radii

D) FeO < CaO < ;MnO < CuO- basic nature

Answer:

Option A

Explanation:

The correct order of ionic radii is $Cr^{3+}$ >  $Mn^{3+}$  >  $Fe^{3+}$ > $Sc^{3+}$