Question

The charge/size ratio of a cation determines its polarising power. Which one of the following sequences represents the increasing order of the polarising power of the cationic species, ${{\rm{K}}^ + },{\rm{C}}{{\rm{a}}^{2 + }},{\rm{M}}{{\rm{g}}^{2 + }},{\rm{B}}{{\rm{e}}^{2 + }}$?

Accepted Answer

${{\rm{K}}^ + } < C{{\rm{a}}^{2 + }} < M{{\rm{g}}^{2 + }} < B{{\rm{e}}^{2 + }}$

Answer

${\rm{M}}{{\rm{g}}^{2 + }} < B{{\rm{e}}^{2 + }} < {{\rm{K}}^ + } < C{{\rm{a}}^{2 + }}$

Answer

${\rm{B}}{{\rm{e}}^{2 + }} < {{\rm{K}}^ + } < C{{\rm{a}}^{2 + }} < M{{\rm{g}}^{2 + }}$

Answer

${\rm{C}}{{\rm{a}}^{2 + }} < M{{\rm{g}}^{2 + }} < B{{\rm{e}}^{2 + }} < {{\rm{K}}^ + }$

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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