The charge size ratio of a cation determines its polarising power. Which one of the…
Chemistry · JEE Main · NTA Exams — Chemical Bonding and Molecular Structure
The \(\frac{\text { charge }}{\text { size }}\) ratio of a cation determines its polarising power. Which one of the following sequence represents the increasing order of the polarising power of the cationic species, K+, Ca2+, Mg2+, Be2+?
- Mg2+ < Be2+ < K+ < Ca2+
- Be2+ < K+ < Ca2+ < Mg2+
- K+ < Ca2+ < Mg2+ < Be2+
- Ca2+ < Mg2+ < Be2+ < K+
Answer
(C) K + < Ca 2 + < Mg 2 + < Be 2 +
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