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