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Chemistry
Which of the following does not represent the correct order of the property indicated?
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Q. Which of the following does not represent the correct order of the property indicated?
Classification of Elements and Periodicity in Properties
A
$Sc^{3+} >\, Cr^{3+} >\, Fe^{3+} >\, Mn^{3+}$ ionic radii
22%
B
$Sc <\, Ti <\, Cr < \,Mn$ Density
21%
C
$Mn^{2+} >\, Ni^{2+}<\, Co^{2+} <\, Fe^{2+}$ ionic radii
36%
D
$FeO <\, CaO >\, MnO >\, CuO$ Basic nature
21%
Solution:
$Sc^{3+}>\,Cr^{3+}>\,Fe^{3+}>\,Mn^{3+}$ the correct order is $Cr^{+3}>\,Mn^{+3}>\, Fe^{+3}>\,Sc^{+3}$